Changes

=====Epidemics=====

=====Epidemics=====

Outbeak prediction to date has been inaccurate, implying that other, unidentified factors may be in operation.  However, there some epidemic requirements are beyond question.  Adequate amounts of infective virus, sufficent vectors, infected sylvatic hosts and susceptible terminal hosts, and finally, appropriate reservoirs, are all crucial.

Outbeak prediction to date has been inaccurate, implying that other, unidentified factors may be in operation.  However, some epidemic requirements are beyond question.  Adequate amounts of infective virus, sufficent vectors, infected sylvatic hosts and susceptible terminal hosts, and finally, appropriate reservoirs, are all crucial.

====Pathogenesis====

====Pathogenesis====