Interferons:
b) are produced by specialized
cells;
c) activate phagocytic cells;
e ) enhance the activity of cytotoxic T-lymphocytes:
Vibrio genus involves many species, only some serotypes of V.cholerae are pathogens of cholera. Which of the following causative agents of cholera?
V.cholerae serogroups non O1 and non O139
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