This week: An old respiratory virus is filling children's hospitals, but hope may be in the wings; the WHO issues a critical new warning about dangerous fungi; the many ways COVID-19 can affect your menstrual cycle.
Beds in children's hospitals across the U.S. are filling up with young patients struggling to breath and in dire need of oxygen. The culprit: respiratory syncytial virus, a pathogen that is a leading cause of childhood death worldwide. But new antibody treatments and vaccine candidates may offer long-awaited relief.
Only about 120,000 of the 5 million or so fungal species have been identified—of that number, just several hundred are known to harm humans. At the same time, changes in the environment and climate, as well as fungicide overuse in agriculture, have helped to engineer a fitter microbe—capable of infecting people and evading the few drugs designed to fight them.
Physicians failed to warn women about the expected temporary disruptions to their periods after the vaccine, and the more significant issues after a severe bout of COVID-19.
They now account for a tenth of the nation’s COVID-19 cases. Here’s why these strains are so good at evading immunity—and how the vaccines will protect against them.
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