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ZURICH (Reuters) – Vaccines from AstraZeneca, Russia’s Gamaleya Institute and Johnson & Johnson fight the coronavirus with another virus, leaving scientists concerned the shots may lose potency if annual inoculations become necessary to fight new variants. So-called viral vector shots – also used by several Chinese COVID-19 vaccine developers – use harmless modified viruses as […]
The World Health Organization on Monday announced Congo will start using a second experimental Ebola vaccine, as efforts to stop the deadly outbreak are stalled and Doctors Without Borders criticizes vaccination efforts to date. Interested in Ebola? Since this outbreak was declared in August 2018, more than 200,000 people have received doses of a vaccine […]