'Vaccinated person' diaporamas de présentation

Body Defenses and Immunity

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Viruses

Viruses . Biology 11 A. MacAskill . What is a virus?. Virus is the L atin word for Poison A Virus does not fit the six kingdom classification They lack the characteristics of living cells Unlike all true organisms (even the most simple bacteria) viruses have no cellular structure

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VARicella - zoster virus (chickenpox)

VARicella - zoster virus (chickenpox). presented by Julie Minton. History. Chickenpox disease first described in 1767 by an English doctor, William Heberden. Dr. Heberden realized two important points. Chickenpox is different than the more deadly disease smallpox.

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