Cuban health workers arriving at the Waterkloof air force base in Pretoria on Monday. Photograph: Elmond Jiyane/GCIS/AFP via Getty Images

Hundreds of Cuban medical professionals have arrived in South Africa, which will begin to ease its Covid-19 lockdown from this Friday, to bolster the (...)

When preliminary trial results of the new vaccine were released a year ago, the World Health Organisation called it ‘a major scientific breakthrough’. Photograph: iStock

In what may be a watershed moment in the fight against tuberculosis, the world’s most lethal infectious disease, an experimental new vaccine has prote(...)