What can 35-year-old stool samples tell scientists about HIV/AIDS?

Men who contracted HIV in the early days of the HIV/AIDS pandemic harbored a greater relative abundance of pro-inflammatory vs. anti-inflammatory gut microbes before they became HIV-positive compared to their counterparts who remained HIV-negative, according to new research published today in the journal Microbiome. In addition, the men who progressed to AIDS the quickest had the least favorable gut microbiome composition.
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