Recommendations for the Use of Antiretroviral Drugs in Pregnant Women with HIV Infection and Interventions to Reduce Perinatal HIV Transmission in the United States
The information in the brief version is excerpted directly from the full-text guidelines. The brief version is a compilation of the tables and boxed recommendations.
Preconception Counseling and Care for Women of Childbearing Age Living with HIV
Reproductive Options for Couples with the Same or Differing HIV Status
Last Updated: November 14, 2017; Last Reviewed: November 14, 2017
For Couples Who Want to Conceive When One or Both Partners are Living with HIV:
|Rating of Recommendations: A = Strong; B = Moderate; C = Optional
Rating of Evidence: I = One or more randomized trials with clinical outcomes and/or validated laboratory endpoints; II = One or more well-designed, nonrandomized trials or observational cohort studies with long-term clinical outcomes; III = Expert opinion
The objective of this section is to provide guidance for safe conception and pregnancy while maximizing efforts to prevent HIV transmission to partners and infants.
For couples in which one or both partners are living with HIV, optimal health should be attained before attempting conception; couples should be counseled to only attempt conception after the partners living with HIV have initiated antiretroviral therapy (ART) and have achieved sustained suppression of plasma viral load below the limits of detection. For couples with the same or differing HIV status who want to conceive, expert consultation is recommended so that approaches can be tailored to their specific needs.
Before attempting to conceive, both partners should be screened for genital tract infections. Treatment of such infections is important because genital tract inflammation is associated with genital tract shedding of HIV.1-5
Couples with Differing HIV Status
Before conception is attempted, the partner living with HIV should be receiving ART and have achieved sustained suppression of plasma viral load below the limits of detection. HPTN 052 was a randomized clinical trial designed to evaluate whether immediate versus delayed initiation of ART by persons living with HIV with CD4 T lymphocyte (CD4) cell counts of 350 to 550 cells/mm3 could prevent sexual transmission of HIV among couples with differing HIV status. Most of the participants were from Africa (54%), with 30% from Asia and 16% from North and South America. This study showed that earlier initiation of ART led to a 93% reduction in sexual transmission of HIV to the partner. Of 46 cases of HIV infection documented to be genetically linked to the partner living with HIV, 43 occurred in the 877 couples in which the partner living with HIV delayed initiation of ART until the CD4 cell count fell below 250 cells/mm3, whereas 3 cases of HIV infection occurred in the 886 couples with a partner living with HIV who began immediate ART. The majority of transmissions (82%) were observed in participants from Africa. Thus, this randomized trial clearly demonstrated that provision of treatment to persons living with HIV can reduce the risk of transmission of HIV to their sexual partners.6 In addition, the PARTNERS trial—which studied 1,166 serodiscordant couples (both heterosexual and men who have sex with men) where the partner with HIV was on suppressive ART and had sex without using a condom—had no cases of transmission after 1.3 years.7
In 161 serodiscordant couples (133 with a male partner living with HIV) where the partner living with HIV received suppressive ART, and the couple opted for natural conception, a total of 144 natural pregnancies occurred and 107 babies were born. No case of sexual (to partner) or vertical (to infant) transmission occurred.8
It is important to recognize that no single method (including treatment of the partner living with HIV) is fully protective against transmission of HIV, though the risk appears to approach zero when the partner living with HIV maintains consistently undetectable plasma viral load on ART.9 Effective ART that decreases plasma viral load to undetectable levels is also associated with decreased concentration of virus in genital secretions. However, discordance between plasma and genital viral loads has been reported, and individuals with an undetectable plasma viral load may have detectable genital tract virus.10-12 In addition, antiretroviral (ARV) drugs vary in their ability to penetrate the genital tract.13 In a prospective study of 2,521 African couples with differing HIV status, higher genital HIV RNA concentrations were associated with greater risk of heterosexual HIV-1 transmission and this effect was independent of plasma HIV concentrations.14 Each log10 increase in genital HIV-1 RNA levels increased the risk of female-to-male or male-to-female HIV transmission by 1.7-fold.14 However, there was no case of transmission in the context of undetectable plasma viral load but detectable genital tract HIV.
In addition to reducing the risk of HIV transmission between partners, starting ART before conception in women living with HIV may also further reduce the risk of perinatal transmission.15 Early and sustained control of HIV viral replication may be associated with decreasing residual risk of perinatal transmission,16,17 but did not completely eliminate the risk of perinatal transmission.17 In addition, reports are mixed on the possible effects of ART on prematurity and low birthweight, with some but not all data suggesting that such outcomes may be more frequent in women on ARV drugs at conception.18-20
The implications of initiating therapy before conception and the need for strict adherence to achieve plasma viral load below the limits of detection should be discussed with the couple. Consultation with an expert in HIV care is strongly recommended.
Strategies for Safer Conception
For serodiscordant couples where the woman is living with HIV, assisted insemination at home or in a provider’s office with a partner’s semen during the periovulatory period is recommended as a conception strategy that eliminates the risk of HIV transmission to the partner without HIV. For serodiscordant couples where the man is living with HIV, the use of donor sperm from a man who is HIV-uninfected can be used as a conception strategy that eliminates the risk of HIV transmission to the partner without HIV.
However, as described above, studies have shown that the risk of HIV infection to the partner without HIV is very low when the partner living with HIV is on ART and has demonstrated sustained plasma viral load below the limits of detection. For serodiscordant couples where the partner living with HIV is on ART and has achieved sustained viral suppression, sexual intercourse without a condom limited to the 2 to 3 days before and the day of ovulation (peak fertility) is an approach to conception with low risk of sexual HIV transmission to the partner without HIV. The use of an ovulation kit would be optimal to identify the most fertile time of the cycle.
The use of sperm preparation techniques coupled with either intrauterine insemination or in vitro fertilization with intracytoplasmic sperm injection has been reported. However, the appropriate role of semen preparation techniques in the current context is unclear, particularly given their expense and technical requirements. These sperm preparation techniques were largely developed prior to the studies demonstrating the efficacy of PrEP and ART in decreasing transmission to sexual partners without HIV. Sperm preparation techniques may be useful in cases of male infertility.
Semen analysis is recommended for men living with HIV before conception is attempted because HIV, and possibly ART, may be associated with a higher prevalence of sperm abnormalities such as low sperm count, low motility, higher rate of abnormal forms, and low semen volume. If such abnormalities are present, the female partner without HIV may be exposed unnecessarily and for prolonged periods to her partner’s infectious genital fluids when the likelihood of conceiving naturally is low or nonexistent.21-24
For serodiscordant couples who attempt conception via sexual intercourse without a condom (despite counseling), when the partner living with HIV has not been able to achieve viral suppression or when viral suppression status is not known, administration of antiretroviral PrEP to the partner without HIV is recommended to reduce the risk of sexual transmission of HIV. PrEP is the use of ARV medications by an individual who is HIV negative to maintain blood and genital drug levels sufficient to prevent acquisition of HIV. Only daily dosing of combination tenofovir disoproxil fumarate (TDF) and emtricitabine is currently Food and Drug Administration-approved for use as PrEP. Adherence is critical. Couples should still be counseled to limit sex without a condom to the period of peak fertility.
One study evaluated timed intercourse with PrEP in 46 heterosexual couples of differing HIV status where the female partner was HIV negative. The male partners living with HIV were receiving ART and had undetectable plasma HIV RNA levels. One dose of oral TDF was taken by the women at luteinizing hormone peak and a second oral dose was taken 24 hours later. None of the women contracted HIV and pregnancy rates were high, reaching a plateau of 75% after 12 attempts.25 Another study from England reported the use of TDF with or without emtricitabine for PrEP by the female partner who was HIV negative with timed intercourse in 13 couples of differing HIV status; PrEP was well tolerated and no HIV transmissions occurred.26
Sun et al. reported on 91 serodiscordant couples (43 with men living with HIV and 48 with women living with HIV) with effective ART being used in the partner with HIV, with PrEP (or post-exposure prophylaxis) administered to the partner without HIV, and with intercourse timed to maximally reduce the risk of HIV transmission. There were 196 acts of intercourse with a condom, 100 natural conceptions, and 97 live births. There were no cases of HIV seroconversion in the sexual partner without HIV.27
Among 1,013 Kenyan and Ugandan, high-risk HIV serodiscordant couples (67% of couples where the woman was living with HIV), where an integrated ART and PrEP strategy for HIV prevention was implemented, there were no HIV tranmissions to male partners. Only 2 incident infections were observed in the women (HIV incidence of 0.2 per 100 person years). These 2 infections occurred in the absence of use of ART or PrEP.28
Many studies have demonstrated that PrEP reduces the risk of HIV acquisition in both men and women, with minimal risk of incident ARV resistance. Other trials failed to demonstrate PrEP efficacy, likely related to suboptimal levels of adherence.6,29-34 Table 4 summarizes clinical trials of PrEP.35
|TDF2||1,219 sexually active adults; 55% male, 45% female; 94 % unmarried; approximately 90% aged 21–29
||Botswana||Daily oral TDF/FTC
||>30% did not complete study; cannot draw definitive conclusions for women and men separately.
|PIP||4,758 serodiscordant heterosexual couples; 38% HIV-negative female, 68% HIV-negative male partner; 98% married; median age 33
||Botswana, Kenya, Rwanda, South Africa, Tanzania, Uganda, Zambia
||Daily oral TDF or TDF/FTC
||67% protection with TDF alone; 75% protection with TDF/FTC
||Serodiscordant couples may be a distinct, unique population.
||1,951 heterosexual women aged 18–35 at high risk of infection
||Kenya, South Africa, Tanzania
||Daily oral TDF/FTC
||Trial discontinued for futility in April 2011.
||Adherence assessment with monthly clinical samples to measure drug concentration is pending.
|5,029 heterosexual women aged 18–45 in high-prevalence areas
||Uganda, South Africa, Zimbabwe
||Daily oral TDF or daily oral TDF/FTC or daily topical TFV gel
||No study drug significantly reduced the risk of HIV acquisition. Estimates of effectiveness were less than 0 for TDF and TDF/FTC daily oral dosing (negative 48.8% and negative 4.2% TDF/FTC respectively), and reduced risk of HIV infection of 14.7% for TDF gel.
||Adherence to study drugs was low; TFV was detected in 30% of the oral TDF arm, 29% in the oral TDF/FTC arm, and 25% in the TDF gel arm.
|Key to Acronyms: FTC = emtricitabine; TDF = tenofovir disoproxil fumarate; TFV = tenofovir
Adapted from: Kashuba et al., Pre-exposure prophylaxis for HIV prevention: how to predict success: Table Antiretroviral-based HIV prevention studies. Lancet. 2012;379(9835): 2409-2411.
Pregnancy and breastfeeding are not contraindications to PrEP.36-40 There is no evidence of an increase in congenital anomalies among children born to women exposed to TDF or to emtricitabine during the first trimester.41 Data from studies of infants born to mothers living with HIV and exposed to TDF through breast milk suggest limited drug exposure.42-44 Condom use should be encouraged in pregnancy because several studies have reported increased incidence of HIV acquisition during pregnancy, which may also lead to increased perinatal transmission.
For couples with differing HIV status who attempt conception (sexual intercourse without a condom limited to peak fertility) when the partner living with HIV has achieved viral suppression, it is unclear if administration of PrEP for the partner without HIV further reduces the risk of sexual transmission. A modeling study analyzed the utility of PrEP under different conditions. Hoffman’s analysis shows that PrEP provides little added benefit when the male partner is on ART with suppressed viral load, sex without a condom is limited to the ovulation window, and other modifiable transmission risks are optimized.45
Pre-Exposure Prophylaxis Provision and Monitoring in Couples with Differing HIV Status
If clinicians elect to use PrEP in couples with differing HIV status, the couples should be educated about the potential risks and benefits and all available alternatives for safer conception. The Centers for Disease Control and Prevention (CDC) has issued guidelines for the use of PrEP in sexually active heterosexual adults.46 The CDC recommends that an individual who does not have HIV and is planning pregnancy with a partner living with HIV start daily oral TDF plus emtricitabine beginning 1 month before conception is attempted and continued for 1 month after conception is attempted.46 Recommended laboratory testing should include HIV diagnostic testing at baseline then every 3 months, renal function testing at baseline and then every 6 months, and pregnancy testing at baseline and every 3 months. Testing for hepatitis B virus (HBV) infection should be performed when initiating PrEP. Individuals without HBV infection should be vaccinated if they have not received HBV vaccination or they lack immunity to HBV. Individuals receiving PrEP should be educated about symptoms associated with acute HIV infection and advised to contact their providers immediately for further evaluation, should symptoms occur. Partners who are HIV negative should undergo frequent HIV testing to detect HIV infection quickly. If HIV infection is documented, the PrEP ARV agents should be discontinued to minimize selection of drug-resistant virus, measures should be instituted to prevent perinatal transmission if pregnancy has occurred and attempts at conception stopped if pregnancy has not occurred, and the patient should be referred to an HIV specialist immediately. Individuals with chronic HBV should be monitored for possible hepatitis flares when PrEP is stopped.47 Clinicians are strongly encouraged to register women who become pregnant while receiving PrEP with the Antiretroviral Pregnancy Registry.
Couples Where Both Partners are Living with HIV
Both partners should be on ART with maximum viral suppression before attempting conception. Periovulatory unprotected intercourse (with use of condoms at all other times) is a reasonable option. The risk of HIV superinfection or infection with a resistant virus is negligible when both partners are on ART and have fully suppressed plasma viral loads.48
Monitoring of Pregnant Women Without HIV who have Partners with HIV
Women without HIV who present during pregnancy and indicate that their partners are living with HIV, like all pregnant women, should be notified that HIV screening is recommended, and they will receive an HIV test as part of the routine panel of prenatal tests unless they decline. Pregnant women without HIV should also be counseled to always use condoms to reduce the risk of HIV acquisition and their partners living with HIV should be virologically suppressed on ART. These women should be tested for HIV, at least once per trimester, or more often if the partner’s viral load is not known. Furthermore, pregnant women who present in labor without results of third-trimester testing should be screened on the labor and delivery unit with an expedited serum HIV test, preferably a fourth-generation antigen/antibody expedited HIV test. If at any time during pregnancy a clinician suspects that a pregnant woman may be in the “window” period of seroconversion (i.e., she has signs or symptoms consistent with acute HIV infection), then a plasma HIV RNA test should be used in conjunction with an HIV antigen/antibody fourth-generation test. If the plasma HIV RNA is negative, it should be repeated in 2 weeks. Pregnant women without HIV with partners living with HIV should be counseled on methods to prevent acquisition of HIV, including suppressive ART for her partner, PrEP, and condom use. Women should be counseled regarding the symptoms of acute retroviral syndrome (i.e., fever, pharyngitis, rash, myalgia, arthralgia, diarrhea, and headache) and the importance of seeking medical care and testing if they experience such symptoms.
Women who test HIV seropositive on either conventional or rapid HIV tests should receive appropriate evaluation and interventions to reduce perinatal transmission of HIV, including immediate initiation of appropriate ART and consideration of elective cesarean delivery according to established guidelines (see Transmission and Mode of Delivery). In cases where confirmatory test results are not readily available, such as with rapid testing during labor, it is still appropriate to initiate interventions to reduce perinatal transmission (see Intrapartum Care and Infant Antiretroviral Prophylaxis).
Women with partners living with HIV who test HIV seronegative should continue to be regularly counseled regarding consistent condom use to decrease their risk of sexual transmission of HIV. They should also be counseled on the importance of their partners’ adherence to ART and the need for achievement of sustained virologic suppression to reduce the risk of sexual transmission of HIV. Women with primary HIV infection during pregnancy or lactation are at high risk of transmitting HIV to their infants.49,50
Coordination of care across multiple disciplines including HIV primary care, Ob/Gyn, family planning, case management and peer support is advised. Integration of reproductive health counseling including pregnancy desires and/or prevention are all recommended.
The National Perinatal HIV Hotline (1-888-448-8765) is a resource for a list of institutions offering reproductive services for HIV concordant/serodiscordant couples.
- Mitchell C, Hitti J, Paul K, et al. Cervicovaginal shedding of HIV type 1 is related to genital tract inflammation independent of changes in vaginal microbiota. AIDS Res Hum Retroviruses. 2011;27(1):35-39. Available at http://www.ncbi.nlm.nih.gov/pubmed/20929397.
- Johnson LF, Lewis DA. The effect of genital tract infections on HIV-1 shedding in the genital tract: a systematic review and meta-analysis. Sex Transm Dis. 2008;35(11):946-959. Available at http://www.ncbi.nlm.nih.gov/pubmed/18685546.
- Anderson BL, Firnhaber C, Liu T, et al. Effect of trichomoniasis therapy on genital HIV viral burden among African women. Sex Transm Dis. 2012;39(8):638-642. Available at http://www.ncbi.nlm.nih.gov/pubmed/22797689.
- Blish CA, McClelland RS, Richardson BA, et al. Genital inflammation predicts HIV-1 shedding independent of plasma viral load and systemic inflammation. J Acquir Immune Defic Syndr. 2012;61(4):436-440. Available at http://www.ncbi.nlm.nih.gov/pubmed/22878424.
- Homans J, Christensen S, Stiller T, et al. Permissive and protective factors associated with presence, level, and longitudinal pattern of cervicovaginal HIV shedding. J Acquir Immune Defic Syndr. 2012;60(1):99-110. Available at http://www.ncbi.nlm.nih.gov/pubmed/22517416.
- Cohen MS, Chen YQ, McCauley M, et al. Antiretroviral therapy for the prevention of HIV-1 transmission. N Engl J Med. 2016;375(9):830-839. Available at http://www.ncbi.nlm.nih.gov/pubmed/27424812.
- Rodger AJ, Cambiano V, Bruun T, et al. Sexual activity without condoms and risk of HIV transmission in serodifferent couples when the HIV-positive partner is using suppressive antiretroviral therapy. JAMA. 2016;316(2):171-181. Available at https://www.ncbi.nlm.nih.gov/pubmed/27404185.
- Del Romero J, Baza MB, Rio I, et al. Natural conception in HIV-serodiscordant couples with the infected partner in suppressive antiretroviral therapy: A prospective cohort study. Medicine (Baltimore). 2016;95(30):e4398. Available at https://www.ncbi.nlm.nih.gov/pubmed/27472733.
- Eshleman SH, Hudelson SE, Redd AD, et al. Treatment as prevention: characterization of partner infections in the HIV Prevention Trials Network 052 Trial. J Acquir Immune Defic Syndr. 2017;74(1):112-116. Available at https://www.ncbi.nlm.nih.gov/pubmed/27532476.
- Sheth PM, Kovacs C, Kemal KS, et al. Persistent HIV RNA shedding in semen despite effective antiretroviral therapy. AIDS. 2009;23(15):2050-2054. Available at http://www.ncbi.nlm.nih.gov/pubmed/19710596.
- Cu-Uvin S, DeLong AK, Venkatesh KK, et al. Genital tract HIV-1 RNA shedding among women with below detectable plasma viral load. AIDS. 2010;24(16):2489-2497. Available at http://www.ncbi.nlm.nih.gov/pubmed/20736815.
- Politch JA, Mayer KH, Welles SL, et al. Highly active antiretroviral therapy does not completely suppress HIV in semen of sexually active HIV-infected men who have sex with men. AIDS. 2012. Available at http://www.ncbi.nlm.nih.gov/pubmed/22441253.
- Taylor S, Davies S. Antiretroviral drug concentrations in the male and female genital tract: implications for the sexual transmission of HIV. Curr Opin HIV AIDS. 2010;5(4):335-343. Available at http://www.ncbi.nlm.nih.gov/pubmed/20543610.
- Baeten JM, Kahle E, Lingappa JR, et al. Genital HIV-1 RNA predicts risk of heterosexual HIV-1 transmission. Sci Transl Med. 2011;3(77):77ra29. Available at http://www.ncbi.nlm.nih.gov/pubmed/21471433.
- Mandelbrot L, Tubiana R, Le Chenadec J, et al. No perinatal HIV-1 transmission from women with effective antiretroviral therapy starting before conception. Clin Infect Dis. 2015;61(11):1715-1725. Available at http://www.ncbi.nlm.nih.gov/pubmed/26197844.
- Townsend CL, Cortina-Borja M, Peckham CS, de Ruiter A, Lyall H, Tookey PA. Low rates of mother-to-child transmission of HIV following effective pregnancy interventions in the United Kingdom and Ireland, 2000-2006. AIDS. 2008;22(8):973-981. Available at http://www.ncbi.nlm.nih.gov/pubmed/18453857.
- Tubiana R, Le Chenadec J, Rouzioux C, et al. Factors associated with mother-to-child transmission of HIV-1 despite a maternal viral load <500 copies/ml at delivery: a case-control study nested in the French perinatal cohort (EPF-ANRS CO1). Clin Infect Dis. 2010;50(4):585-596. Available at http://www.ncbi.nlm.nih.gov/pubmed/20070234.
- Kourtis AP, Schmid CH, Jamieson DJ, Lau J. Use of antiretroviral therapy in pregnant HIV-infected women and the risk of premature delivery: a meta-analysis. AIDS. 2007;21(5):607-615. Available at http://www.ncbi.nlm.nih.gov/pubmed/17314523.
- Rudin C, Spaenhauer A, Keiser O, et al. Antiretroviral therapy during pregnancy and premature birth: analysis of Swiss data. HIV Med. 2011;12(4):228-235. Available at http://www.ncbi.nlm.nih.gov/pubmed/20726902.
- Jao J, Abrams EJ. Metabolic Complications of in utero Maternal HIV and Antiretroviral Exposure in HIV-exposed Infants. Pediatr Infect Dis J. 2014;33(7):734-740. Available at http://www.ncbi.nlm.nih.gov/pubmed/24378947.
- Garrido N, Meseguer M, Remohi J, Simon C, Pellicer A. Semen characteristics in human immunodeficiency virus (HIV)- and hepatitis C (HCV)-seropositive males: predictors of the success of viral removal after sperm washing. Hum Reprod. 2005;20(4):1028-1034. Available at http://www.ncbi.nlm.nih.gov/pubmed/15608027.
- Dulioust E, Du AL, Costagliola D, et al. Semen alterations in HIV-1 infected men. Hum Reprod. 2002;17(8):2112-2118. Available at http://www.ncbi.nlm.nih.gov/pubmed/12151446.
- Cardona-Maya W, Velilla P, Montoya CJ, Cadavid A, Rugeles MT. Presence of HIV-1 DNA in spermatozoa from HIV-positive patients: changes in the semen parameters. Curr HIV Res. 2009;7(4):418-424. Available at http://www.ncbi.nlm.nih.gov/pubmed/19601777.
- Bujan L, Sergerie M, Moinard N, et al. Decreased semen volume and spermatozoa motility in HIV-1-infected patients under antiretroviral treatment. J Androl. 2007;28(3):444-452. Available at http://www.ncbi.nlm.nih.gov/pubmed/17215546.
- Vernazza PL, Graf I, Sonnenberg-Schwan U, Geit M, Meurer A. Preexposure prophylaxis and timed intercourse for HIV-discordant couples willing to conceive a child. AIDS. 2011;25(16):2005-2008. Available at http://www.ncbi.nlm.nih.gov/pubmed/21716070.
- Whetham J, Taylor S, Charlwood L, et al. Pre-exposure prophylaxis for conception (PrEP-C) as a risk reduction strategy in HIV-positive men and HIV-negative women in the UK. AIDS Care. 2014;26(3):332-336. Available at http://www.ncbi.nlm.nih.gov/pubmed/23876052.
- Sun L, Wang F, Liu A, et al. Natural conception may be an acceptable option in HIV-serodiscordant couples in resource limited settings. PLoS One. 2015;10(11):e0142085. Available at https://www.ncbi.nlm.nih.gov/pubmed/26540103.
- Baeten JM, Heffron R, Kidoguchi L, et al. Integrated delivery of antiretroviral treatment and pre-exposure prophylaxis to HIV-1-serodiscordant couples: a prospective implementation study in Kenya and Uganda. PLoS Med. 2016;13(8):e1002099. Available at https://www.ncbi.nlm.nih.gov/pubmed/27552090.
- Abdool Karim Q, Abdool Karim SS, Frohlich JA, et al. Effectiveness and safety of tenofovir gel, an antiretroviral microbicide, for the prevention of HIV infection in women. Science. 2010;329(5996):1168-1174. Available at http://www.ncbi.nlm.nih.gov/pubmed/20643915.
- Grant RM, Lama JR, Anderson PL, et al. Preexposure chemoprophylaxis for HIV prevention in men who have sex with men. N Engl J Med. 2010;363(27):2587-2599. Available at http://www.ncbi.nlm.nih.gov/pubmed/21091279.
- Thigpen MC, Kebaabetswe PM, Paxton LA, et al. Antiretroviral preexposure prophylaxis for heterosexual HIV transmission in botswana. N Engl J Med. 2012. Available at http://www.ncbi.nlm.nih.gov/pubmed/22784038.
- Aaron E, Cohan D. Preexposure prophylaxis for the prevention of HIV transmission to women. AIDS. 2013;27(1):F1-5. Available at http://www.ncbi.nlm.nih.gov/pubmed/22914582.
- Baeten J, Celum C. Oral antiretroviral chemoprophylaxis: current status. Curr Opin HIV AIDS. 2012;7(6):514-519. Available at http://www.ncbi.nlm.nih.gov/pubmed/22964886.
- Marrazzo JM, Ramjee G, Richardson BA, et al. Tenofovir-based preexposure prophylaxis for HIV infection among African women. N Engl J Med. 2015;372:509-518. Available at http://www.nejm.org/doi/full/10.1056/NEJMoa1402269#t=article.
- Kashuba AD, Patterson KB, Dumond JB, Cohen MS. Pre-exposure prophylaxis for HIV prevention: how to predict success. Lancet. 2012;379(9835):2409-2411. Available at http://www.ncbi.nlm.nih.gov/pubmed/22153566.
- Gray RH, Li X, Kigozi G, et al. Increased risk of incident HIV during pregnancy in Rakai, Uganda: a prospective study. Lancet. 2005;366(9492):1182-1188. Available at http://www.ncbi.nlm.nih.gov/pubmed/16198767.
- Morrison CS, Wang J, Van Der Pol B, Padian N, Salata RA, Richardson BA. Pregnancy and the risk of HIV-1 acquisition among women in Uganda and Zimbabwe. AIDS. 2007;21(8):1027-1034. Available at http://www.ncbi.nlm.nih.gov/pubmed/17457097.
- Moodley D, Esterhuizen TM, Pather T, Chetty V, Ngaleka L. High HIV incidence during pregnancy: compelling reason for repeat HIV testing. AIDS. 2009;23(10):1255-1259. Available at http://www.ncbi.nlm.nih.gov/pubmed/19455017.
- Moodley D, Esterhuizen T, Reddy L, et al. Incident HIV infection in pregnant and lactating women and its effect on mother-to-child transmission in South Africa. J Infect Dis. 2011;203(9):1231-1234. Available at http://www.ncbi.nlm.nih.gov/pubmed/21398393.
- Taha TE, James MM, Hoover DR, et al. Association of recent HIV infection and in-utero HIV-1 transmission. AIDS. 2011;25(11):1357-1364. Available at http://www.ncbi.nlm.nih.gov/pubmed/21572305.
- Antiretroviral Pregnancy Registry Steering Committee. Antiretroviral Pregnancy Registry international interim report for 1 January 1989–31 July 2015. Wilmington, NC: Registry Coordinating Center. 2015. Available at http://www.apregistry.com/.
- Johnson LF, Stinson K, Newell ML, et al. The contribution of maternal HIV seroconversion during late pregnancy and breastfeeding to mother-to-child transmission of HIV. J Acquir Immune Defic Syndr. 2012;59(4):417-425. Available at http://www.ncbi.nlm.nih.gov/pubmed/22193774.
- Benaboud S, Pruvost A, Coffie PA, et al. Concentrations of tenofovir and emtricitabine in breast milk of HIV-1-infected women in Abidjan, Cote d'Ivoire, in the ANRS 12109 TEmAA Study, Step 2. Antimicrob Agents Chemother. 2011;55(3):1315-1317. Available at http://www.ncbi.nlm.nih.gov/pubmed/21173182.
- Mirochnick M, Best BM, Clarke DF. Antiretroviral pharmacology: special issues regarding pregnant women and neonates. Clinics in perinatology. 2010;37(4):907-927, xi. Available at http://www.ncbi.nlm.nih.gov/pubmed/21078458.
- Hoffman RM, Jaycocks A, Vardavas R, et al. Benefits of PrEP as an adjunctive method of HIV prevention during attempted conception between HIV-uninfected women and HIV-infected male partners. J Infect Dis. 2015. Available at http://www.ncbi.nlm.nih.gov/pubmed/26092856.
- Centers for Disease Control and Prevention. Preexposure Prophylaxis for the Prevention of HIV in the United States. 2017.
- Lampe MA, Smith DK, Anderson GJ, Edwards AE, Nesheim SR. Achieving safe conception in HIV-discordant couples: the potential role of oral preexposure prophylaxis (PrEP) in the United States. Am J Obstet Gynecol. 2011;204(6):488 e481-488. Available at http://www.ncbi.nlm.nih.gov/pubmed/21457911.
- Waters L, Smit E. HIV-1 superinfection. Curr Opin Infect Dis. 2012;25(1):42-50. Available at http://www.ncbi.nlm.nih.gov/pubmed/22156898.
- Marinda ET, Moulton LH, Humphrey JH, et al. In utero and intra-partum HIV-1 transmission and acute HIV-1 infection during pregnancy: using the BED capture enzyme-immunoassay as a surrogate marker for acute infection. Int J Epidemiol. 2011;40(4):945-954. Available at http://www.ncbi.nlm.nih.gov/pubmed/21471020.
- Humphrey JH, Marinda E, Mutasa K, et al. Mother to child transmission of HIV among Zimbabwean women who seroconverted postnatally: prospective cohort study. BMJ. 2010;341:c6580. Available at http://www.ncbi.nlm.nih.gov/pubmed/21177735.
- AIDSinfo Drug Database
- AIDSinfo Patient Materials: Preventing Mother-to-Child Transmission of HIV
- AIDSinfo Patient Materials: HIV Medicines During Pregnancy and Childbirth
- AIDSinfo Patient Materials: Protecting Baby from HIV
- AETC National HIV Curriculum
- How to Cite These Guidelines
- Perinatal Guidelines Archive