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598744464

Virus used in the preparation of the smallpox vaccine. An electron micrograph of a Vaccinia virus. Vaccinia virus is normally confined to cattle, but is conveyed to humans through vaccination, thereby imparting immunity to the smallpox virus.

Virus used in the preparation of the smallpox vaccine. An electron micrograph of a Vaccinia virus. Vaccinia virus is normally confined to cattle, but is conveyed to humans through vaccination, thereby imparting immunity to the smallpox virus.

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Dimension Longueur Hauteur Mp
s 500 px 385 px 0.5
m 1000 px 770 px 2
l 2000 px 1539 px 8
xl 3630 px 2794 px 15

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