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Experimental

An Experimental H.I.V. Vaccine Fails in Africa

An advanced HIV vaccine study in Africa was halted after data showed the gunfire offered limited protection from the virus, researchers said Tuesday.The vaccine manufactured by Johnson & Johnson is one in a long line that offers little…

San Diego Zoo Apes Get an Experimental Covid Vaccine

The San Diego Zoo gave nine monkeys an experimental coronavirus vaccine developed by Zoetis, a large veterinary drug company.In January, a group of gorillas in the zoo's Safari Park tested positive for the virus. Everyone is recovering,…