Researchers said a drop in sulfur dioxide levels might allow the bacteria to survive longer in aerosolized water droplets.
Since persistent cough is one of the primary symptoms that sets off the diagnostic process for TB, the findings suggest many patients could receive delayed diagnosis and treatment.
A total of 7% of infants in the vaccine group were born early, compared with 5% in the placebo group, a 37% difference.
Infectious disease information from CIDRAP.
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Data on novel vaccine candidates in clinical or late preclinical development.
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