Whooping cough is a highly infectious disease of the gas exchange system, caused by the bacterium Bordetella pertussis.
Which method provides protection to infants against whooping cough and reduces the chance of developing this disease later in life?
1 )
a short course of more than one type of antibiotic
2 )
a six month course of one type of antibiotic
3 )
injections of antibody specific to Bordetella pertussis
injections of dead Bordetella pertussis bacteria
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