they started vaccinating for whooping cough in 1963.
they started vaccinating for whooping cough in 1963.
when did they start vaccinating for whooping cough?
1963
Na
Na
today it is established that at least some primate species are highly susceptible to "b. pertussis" and develop clinical whooping cough in high incidence when exposed to low inoculation doses. the bacteria may be present in wild animal populations, but this is not confirmed by laboratory diagnosis, although whooping cough is known among wild gorillas. several zoos also have a long-standing custom of vaccinating their primates against whooping cough.









































section::::mechanism.
whooping cough