Why Is Extensively Drug-Resistant TB On The Rise?: A new study of more than 400 patients in South Africa finds, unfortunately, that the answer appears to be the later. Airborne transmission is the driving force behind a spike in extensively drug-resistant tuberculosis (XDR-TB) in South Africa, according to ... Source: "South Africa" - BingNews AFRICA’S EXPANDING MIDDLE … [Read more...] about SA News: Why Is Extensively Drug-Resistant TB On The Rise?