Morbidity and mortality weekly report, Vol. 21, no. 13, For week ending April 1, 1972

Table 1. Cases of specified notifiable diseases: United States -- Table 2. Notifiable diseases of low frequency -- Table 3. Cases of specified notifiable diseases: United States for weeks ended April 1,1972 and April 2, 1971 (13th week) -- Table 4. Deaths in 122 United States cities for week ended April 1, 1972Epidemiologic notes and reports: Botulism - CaliforniaCurrent trends: New import restrictions on psittacine birds - United States -- Distribution of smallpox vaccine and vaccinia immune globulin - United StatesInternational notes: Follow-up on smallpox - Yugoslavia -- Cholera - Worldwide -- Coxsackie B virus infections - United Kingdom, 1971Table 1. Countries reporting cholera - 1970-1972 -- Table 2. Coxsackie B virus infections, United Kingdom - 1965-1971 -- Table 3. Coxsackie B5 infections, by age and clinical category, United Kingdom - 1971Figure 1. Net doses of smallpox vaccine distributed in the United States, 1971-72 -- Figure 2. Persons receiving vaccinia immune globulin (VIG) through CDC VIG distribution program, United States, July 1970 - February 197