Dryvax.jpg | Naked Scientists - 188BET竞彩,188金宝慱亚洲体育app

The smallpox vaccine diluent in a syringe along side a vial of Dryvax® dried smallpox vaccine. Vaccinia (smallpox) vaccine, derived from calf lymph, and currently licensed in the United States, is a lyophilized, live-virus preparation of infectious...

Credit:

James Gathany

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