How did this new strain of the novel coronavirus evolve? Researchers are investigating various possibilities. One leading theory involves ... just one person.
African nations are bristling at the restrictions imposed on them by rich countries — and say they are harmful to local economies and discriminate against countries in the region.
Public health experts warn that the rush to impose travel bans on southern African countries after the omicron variant was identified can work against scientific transparency.
The World Health Organization deemed it a variant of concern, and the U.S. is banning travel from parts of Africa where it's spreading. Here's what scientists know and what they're trying to learn.
De Klerk shared a Nobel Peace Prize with Nelson Mandela, and ceded the presidency to him in 1994 after Black South Africans were allowed to vote. But he's remained a controversial figure there.
After years of progress in reducing the number of annual deaths from tuberculosis, the number of cases of the infectious respiratory disease went up in 2020.
For millions, the pandemic has meant a loss of income even as food prices are rising. The challenge for parents and grandparents is how to feed the youngsters in the family — and themselves as well.