MMWR Surveillance Summary: Past Volume (1990)

The CDC Surveillance Summaries provide a means for CDC programs to disseminate surveillance findings, permitting detailed interpretation of trends and patterns based on those findings.

December 1, 1990 / Vol. 39 / No. SS-4


July 1, 1990 / Vol. 39 / No. SS-3


June 1, 1990 / Vol. 39 / No. SS-2


March 1, 1990 / Vol. 39 / No. SS-1