HIV and pregnancy in Nigeria:
preventing mother-to-child transmission.
Mother-to-child transmission of HIV is one of the most preventable outcomes in medicine. With the right care at the right time, an HIV-positive mother can give birth to and breastfeed an HIV-negative child. Here is exactly how.
Every year in Nigeria, thousands of children are born with HIV that they acquired from their mothers during pregnancy, delivery, or breastfeeding. Almost every one of those transmissions was preventable. The tools to prevent mother-to-child transmission of HIV have existed for decades, they work with near-complete effectiveness, and they are available free of charge at government hospitals across Nigeria. The problem is not a lack of medicine. It is a lack of timely diagnosis and access to care.
This article is for every pregnant woman in Nigeria who is living with HIV or concerned about her HIV status. It explains when and how transmission can occur, what prevention looks like at each stage, which healthcare professionals are involved, and what the outcome is when everything is done correctly.
Why this matters in Nigeria.
Nigeria accounts for a disproportionately large share of new child HIV infections globally. This is not because Nigerian women are different from women anywhere else. It is because gaps in antenatal HIV testing, delays in ART initiation, and barriers to consistent care during pregnancy leave too many women and their babies without the protection that exists and works. Closing those gaps is what this article is about.
The three windows during which HIV can pass from mother to child.
Understanding when transmission happens helps understand what the prevention interventions are targeting.
During pregnancy.
HIV can cross the placenta and infect the developing baby, particularly in the third trimester when placental permeability increases. The risk is strongly correlated with the mother’s viral load: a mother with an undetectable viral load on ART has a near-zero risk of infecting her baby through placental passage. A mother with a high viral load and no treatment has a significantly elevated risk.
During labour and delivery.
The greatest single-event risk of mother-to-child transmission occurs during childbirth, when the baby is exposed to the mother’s blood and vaginal secretions as it passes through the birth canal. This accounts for a large proportion of transmission in untreated pregnancies. Again, an undetectable maternal viral load at the time of delivery dramatically reduces this risk. In some cases, a planned caesarean section may be recommended by an obstetrician for women with detectable viral loads close to delivery.
During breastfeeding.
HIV is present in breast milk and can be transmitted to the infant through breastfeeding, particularly during early or exclusive breastfeeding and when the mother has a detectable viral load. In the Nigerian context, breastfeeding is strongly recommended for infant health even in the context of HIV, provided the mother is on ART with a suppressed viral load. The risk through breast milk from a virally suppressed mother is very low and must be weighed against the significant protective benefits of breastfeeding for infant survival from diarrhoea, pneumonia, and other infections prevalent in Nigeria.
The complete prevention of mother-to-child transmission protocol in Nigeria.
HIV testing at first antenatal visit
Every pregnant woman in Nigeria should have an HIV test at her first antenatal visit, ideally in the first trimester. This is the standard of care and is offered free at government hospitals. A medical laboratory scientist processes the rapid HIV test; results are available the same day. Knowing your status is the essential first step from which everything else follows.
Who does this: Nurse or midwife at the antenatal clinic collects the sample; medical laboratory scientist processes it; nurse or doctor delivers results with counselling.
Immediate ART initiation for HIV-positive pregnant women
Any pregnant woman who tests HIV-positive should begin antiretroviral therapy immediately, regardless of her CD4 count, viral load, or gestational age. The sooner ART is started, the sooner viral suppression is achieved and the lower the transmission risk at every subsequent stage of pregnancy, delivery, and breastfeeding. In Nigeria, this is provided free at government ART clinics.
The preferred ART regimen for pregnant women in Nigeria is currently TDF (Tenofovir) plus 3TC (Lamivudine) plus DTG (Dolutegravir), a once-daily single tablet. Your obstetrician or doctor will prescribe the specific regimen and a pharmacist at the ART clinic dispenses it. Side effects are generally mild and manageable.
Who manages this: Obstetrician or doctor at the HIV clinic prescribes ART; ART clinic pharmacist dispenses; nurse supports adherence counselling.
Viral load monitoring during pregnancy
A viral load test should be done when ART is initiated and repeated at 36 weeks of pregnancy to confirm viral suppression before delivery. An undetectable viral load at 36 weeks is the strongest predictor of non-transmission to the baby. A medical laboratory scientist processes this test at your hospital laboratory or a private reference lab. Your obstetrician reviews the result and uses it to plan your delivery approach.
Who does this: Medical laboratory scientist processes the viral load test; obstetrician or doctor reviews the result.
ART during labour and delivery
The mother continues her regular ART throughout labour. If the viral load at 36 weeks was detectable, additional intravenous ART (zidovudine infusion) may be given during labour by a nurse under medical supervision, and a planned caesarean section may be recommended by the obstetrician to reduce blood and fluid exposure to the baby during delivery.
Who manages this: Obstetrician and midwife at the delivery unit; nurse administers any additional intrapartum treatment.
Infant prophylaxis immediately after birth
Every baby born to an HIV-positive mother receives a short course of antiretroviral prophylaxis immediately after birth, regardless of whether the mother was on treatment. The standard in Nigeria is nevirapine syrup given to the baby for 6 weeks (extended to 12 weeks if the mother was not on ART or had a detectable viral load). This prophylaxis protects the baby from any HIV exposure that may have occurred during delivery. A nurse or midwife administers the first dose in the delivery room; the family continues the course at home with guidance from a doctor or nurse.
Who manages this: Nurse or midwife initiates; paediatrician or doctor oversees; parents administer at home with nurse counselling on technique and schedule.
Continued maternal ART and breastfeeding support
The mother continues ART throughout breastfeeding. As long as she maintains an undetectable viral load, breastfeeding is recommended by the WHO even in the context of HIV, because the health benefits for the baby in a Nigerian setting outweigh the very low residual transmission risk. A doctor, nurse, or lactation counsellor at the clinic provides guidance on breastfeeding technique and the importance of exclusive breastfeeding for the first six months.
Who manages this: Doctor prescribes and monitors ART; nurse or pharmacist supports adherence; paediatrician monitors baby’s health and growth.
Early infant HIV testing
The baby should be tested for HIV at 6 weeks of age using a DNA PCR test, which can detect HIV in infants before standard antibody tests would be reliable. A negative result at 6 weeks and again at 6 weeks after breastfeeding ends provides strong evidence that transmission did not occur. A positive result at any point means the baby should be started on ART immediately. A paediatrician and medical laboratory scientist manage this testing.
Who does this: Medical laboratory scientist processes the PCR test; paediatrician reviews and manages the result.
If you discover your HIV status during pregnancy.
Discovering that you are HIV-positive for the first time during pregnancy, perhaps at an antenatal visit, is a significant shock. The emotional response is real and deserves support. But the medical response is clear and urgent: ART should be started on the same day if possible, or within days at the absolute latest.
Even if you discover your status late in pregnancy, in the third trimester, or even during labour, treatment still provides meaningful protection for your baby. A single dose of nevirapine given to the mother during labour and to the baby immediately after birth, even without prior ART, reduces transmission risk significantly. Starting late is far better than not starting at all.
The nurses and doctors at your antenatal clinic are trained to support women through this situation. You are not the first woman to receive this news during pregnancy, and the care system exists to help you protect your baby. Contact your antenatal nurse or doctor immediately if you receive a positive result at any point during pregnancy.
Protecting yourself during pregnancy if your partner’s status is uncertain.
HIV acquisition during pregnancy carries a particularly high risk of mother-to-child transmission because viral load is extremely high during the acute infection phase, which is precisely when the risk to the developing baby is greatest. An HIV-negative pregnant woman whose partner’s status is unknown or who is at ongoing sexual risk should consider PrEP during pregnancy, which is both safe and recommended by the WHO in this context.
Routine antenatal HIV testing in Nigeria should include a repeat test in the third trimester for women at ongoing risk, because a first-trimester negative result does not account for exposures that occur later in pregnancy. Speak to your midwife, nurse, or obstetrician about a repeat test if your risk circumstances have continued or changed since your first antenatal visit.
Common questions about HIV and pregnancy in Nigeria.
QI am HIV-positive and already on ART. Is my pregnancy high risk?
Not necessarily. An HIV-positive woman who is already on effective ART with a stable undetectable viral load before conception has a very low risk of transmitting HIV to her baby. Pregnancy itself may require some monitoring of your ART regimen for safety in the first trimester, and some regimen adjustments may be made by your doctor for the pregnancy period. But being on suppressive ART before pregnancy is one of the best possible starting points. Inform your obstetrician of your HIV status and current regimen at your first antenatal visit so your care is coordinated appropriately.
QCan I have a vaginal delivery if I am HIV-positive?
Yes, if your viral load is undetectable at 36 weeks. Current guidelines support vaginal delivery for HIV-positive women who are virally suppressed on ART, as the transmission risk is very low regardless of delivery route in this situation. Your obstetrician makes the specific delivery recommendation based on your viral load result, any obstetric factors, and current clinical guidelines. A caesarean section may be recommended if your viral load is detectable close to delivery, but this decision is made by your doctor on clinical grounds.
QShould I breastfeed my baby if I am HIV-positive?
In Nigeria, the WHO recommends that HIV-positive mothers who are on ART and virally suppressed should breastfeed their babies exclusively for the first six months, then continue breastfeeding alongside complementary food until 12 months or beyond. This is because the health benefits of breastfeeding in a Nigerian context, including protection against diarrhoeal disease, respiratory infections, and malnutrition, are substantial and may outweigh the residual transmission risk when the mother is suppressed.
Replacement feeding (formula) is an option for women who are not on ART or who have a detectable viral load, but it carries its own risks in settings where clean water and consistent access to formula cannot be guaranteed. Your doctor, paediatrician, and nurse will help you make the decision that is safest for your specific situation.
QIs ART during pregnancy free in Nigeria?
Yes. ART for HIV-positive pregnant women is provided free of charge at government hospitals and ART clinics across Nigeria under the federal prevention of mother-to-child transmission programme, supported by PEPFAR and the federal government. Infant prophylaxis after delivery is also provided free. You should not be charged for these medications at any government facility. If you are charged, ask to speak to the nurse in charge or the social welfare officer.
Pregnant and concerned about your HIV status or your baby’s protection?
Our pharmacists can help you understand the steps involved, what tests to expect, what medication your doctor may prescribe, and what questions to ask at your antenatal clinic. We are not a substitute for your obstetrician and midwife, but we are available on WhatsApp any time for the questions that do not wait for clinic hours.
Talk to a Pharmacist →A child born HIV-negative to an HIV-positive mother is not luck. It is medicine working exactly as it should.
The tools exist. The care is free. The outcome is preventable. Start your antenatal care early and tell your nurse your HIV status.
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