PLAGUE-PREVENTION WORK. DISTRIBUTION OF POISON. In connection with the making and maintenance of a squirrel-free zone around the cities of California on San Francisco Bay, 2,172 acres of land in Alameda County were covered with poison during the week ended January 6, 1912. During the same period 5,700 acres of land in San Joaquin County and 5,920 acres in Stanislaus County were covered with poison for the purpose of eradicating plague foci. Identified: Mus alexandrinus, 72; Mus rattus, 1; Mus musculus, 1; unidentified, 1. * Identified: Mus norvegicus, 428; Mus musculus 69; Mus rattus, 1. Identified: Mus norvegiens, 657; Mus rattus, 187; Mus musculus, 305; Mus alexandrinus, 134. 5 Identified: Mus norvegicus, 99: Mus rattus, 2; Mus musculus, 8; Mus alexandrinus, 4. Identified: Mus norvegicus, 50. SQUIRRELS COLLECTED. During the week under report 14 squirrels were found dead in Alameda County, Cal. SMALLPOX IN THE UNITED STATES. In the following table the States indicated by an asterisk are those from which reports of smallpox are received only from certain city, and in some cases county, boards of health. In these States, therefore, the recorded cases and deaths should not be taken as showing the general prevalence of the disease. In the States not marked by an asterisk the reports are received monthly from the State boards of health, and include all cases reported to the State authorities. REPORTS RECEIVED DURING WEEK ENDED JAN. 26, 1912. SMALLPOX IN THE UNITED STATES-Continued. For reports received from July 1 to December 29, see Public Health Reports for December 29, 1911. The cumulative table of reported cases of smallpox, heretofore published each week, has been discontinued, and in its place summaries will be published periodically. MORBIDITY AND MORTALITY. MORBIDITY AND MORTALITY TABLE, CITIES OF THE UNITED STATES, FOR WEEK ENDED JAN. 6, 1912. |