Mycobacterium avium complex (MAC) is a group of bacteria that can infect immunocompromised individuals, such as those with advanced AIDS, primarily through contaminated tap water, food, or soil.
The study aimed to evaluate the likelihood of MAC exposure from tap water among people with advanced AIDS, as defined by having fewer than 100 CD4(+) cells/mm³.
Two exposure models were developed, suggesting that approximately 1500 individuals with advanced AIDS could be consuming tap water with detectable MAC organisms, indicating a need for further research on tap water and its impact on HIV(+) populations.