Passage: In general, vitamin D functions to activate the innate and dampen the adaptive immune systems. Deficiency has been linked to increased risk or severity of viral infections, including HIV. Low levels of vitamin D appear to be a risk factor for tuberculosis, and historically it was used as a treatment. Supplementation slightly decreases the risk of acute respiratory tract infections and the exacerbation of asthma. Evidence is lacking on whether it does so in children under five years of age. No clinical trials have been done to assess its effect on preventing other infections, such as malaria.

Question: What would happen to an individual who suffered from insufficient levels of vitamin D?
a risk factor for tuberculosis