'A national inoculation campaign was held in 1976 to prevent an epidemic of this that never materialized'
swine flu
'70s U.S.: A national inoculation campaign was held in 1976 to prevent an epidemic of this that never materialized
A national inoculation campaign was held in 1976 to prevent an epidemic of this that never materialized
A national inoculation campaign was held in 1976 to prevent an epidemic of this that never materialized
'70s U.S.
swine flu
'70s U.S.