Four genera of poxviruses may infect humans: orthopoxvirus, parapoxvirus,
yatapoxvirus, molluscipoxvirus. Orthopox: smallpox virus (variola), vaccinia virus,
smallpox virus structure · smallpox virus virion (virus particle) graphic Smallpox
virus particle (virion) · smallpox virus life cycle or replication diagram Smallpox ...
Above: Simplified Diagram of the smallpox virus (Variola) structure: section
through virion. Image measures 500 pixels across, original image is 4,000 pixels
period. The main features of the developmental cycle of human smallpox virus
may probably ... DIAGRAM I ontogenetic periods of human smallpox virus.
Aug 16, 2008 ... Variola virus species cause two acute infectious diseases believed to ... Variola
major causes smallpox and Variola minor causes alastrim.
Oct 27, 2012 ... As the worlds Smallpox is an acute, contagious disease unique to humans,
caused byeither of two virus Smallpox is believed to have emerged ...
VARIOLA VIRUS. SMALLPOX. INTRODUCTION. The Variola virus, which is the
most virulent member of Genus Orthopoxvirus, is the causative agent of ...
A young Native American boy in Yukon Territory is checked for smallpox and
vaccinated against the disease in this circa-1900 photograph. Smallpox killed ...
Mar 3, 2015 ... At that time, all remaining collected supplies of the smallpox virus were supposed
to be destroyed or sequestered in two laboratories, one in the ...