Macrophages have a certain antitumor effect, which may be related:
> with the phenomenon of direct phagocytosis
of tumor cells
> with process mediated by Tumor Necrosis
Factor
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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