For the prevention of what infections vaccine preparations are not developed? Choose a single combination that takes into account all the correct answers:
1) streptococcal pneumonia
5) tuberculosis.
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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