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HIV-negative babies of women with HIV may have compromised health

A study found that maternal HIV infection leaves “profound and lasting impacts” on the HIV-exposed uninfected (HEU) infant. These impacts include: increased mortality and morbidity, immunological changes, and developmental delays compared to their HIV-unexposed (HU) counterparts.

Photo by Luma Pimentel from Unsplash.com

A study found a link between prenatal HIV exposure and decreased infant immunity despite HIV-negative status at birth.

Analysis of the TCR Repertoire in HIV-Exposed but Uninfected Infants” was written by Benjamin Gabriel, Carey Medin, Jeremiah Alves, Ruth Nduati, Rose Kerubo Bosire, Dalton Wamalwa, Carey Farquhar, Grace John-Stewart and Barbara L. Lohman-Payne, and appeared in Scientific Reports.

The study found that maternal HIV infection leaves “profound and lasting impacts” on the HIV-exposed uninfected (HEU) infant. These impacts include: increased mortality and morbidity, immunological changes, and developmental delays compared to their HIV-unexposed (HU) counterparts.

Exposure to HIV or antiretroviral therapy may influence immune development, which could increase morbidity and mortality. But a direct link between the increased mortality and morbidity and the infant’s immune system has not been identified.

And so to arrive at their conclusions, the researchers compared the T-cell receptor beta-chain repertoire of cord blood samples of HEU yet uninfected infants to samples collected from mother-child pairs unaffected by HIV, but who were living in the same communities.

The researchers found that while the TRB repertoire of HU infants was broadly diverse, in line with the expected idea of a naïve T cell repertoire, samples of HEU infants showed a significantly reduced TRB diversity.

Simply put, “despite the success of antiretroviral therapies in helping to suppress the risk of HIV being passed from mother to child, globally, HIV-exposed uninfected infants are a vulnerable population characterized by increased morbidity and mortality, higher rates of hospitalizations and childhood infections with more severe outcomes.”

More than anything, the findings of the study emphasizes the need for special care and attention to this group.

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Support for this work came from the National Institute of General Medical Sciences of the National Institutes of Health (NIH).

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