Humoral regulation of the immune response exercise:
a)
humoral factors of the thymus gland;
b)
factors that enhance and suppress the functional activity of the cells;
c)
macrophage humoral factors; d) bone marrow humoral factors
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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