2. are illness due to an infectious agent
or toxic products that are transmitted
directly or indirectly to a well person
through an agency, and a vector or an
inanimate object.
11. Varicella-Zoster zvirus
10-12 days
Direct contact to the
skin lesion, indirect
cintact via fomites &
airborne
A day before eruption of
the first lesion up to five
days after the appearance
of the last crop
“center out”