Doctors looked at many studies to see how tuberculosis affects children who were exposed to HIV before birth but do not have the virus themselves. They compared these children to two other groups: children who were never exposed to HIV and children who currently have HIV.
The results showed that children exposed to HIV before birth have a similar chance of testing positive for tuberculosis as children who were never exposed. This means that being exposed to the virus during pregnancy does not seem to make it easier for these children to catch the tuberculosis bacteria.
When looking at actual sickness, the risk of developing full tuberculosis disease was also similar between the two groups of children who do not have HIV. However, children who currently have HIV are much more likely to get sick with the disease than those who were only exposed to the virus before birth.
These findings help doctors understand how to monitor health for different groups of children. While the risk of infection is similar for those exposed before birth, the risk of getting very sick is much lower compared to children living with HIV.