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Many countries, including SA, are offering booster shots to parts of the population. We take a look at what the data say about their safety and who needs them most.
Past infection is unlikely to provide protection against reinfection with Omicron – but will this immunity, and that from vaccines, protect against severe disease?
Tiyese Jeranji looks at a new fingerstick blood test that may help diagnose more people quicker.
The World Health Organization estimates that more than four million of the almost 10 million people who fell ill with tuberculosis in 2020 were not diagnosed. One obstacle to more people being diagnosed is that most current tests require people to produce sputum — which children and some peop...
No new vaccine for TB developed since BCG was first used 100 years ago