Morbidity and mortality weekly report, Vol. 26, no. 6, February 11, 1977

Epidemiologic notes and reports: Salmonella infantis - California, Colorado -- Isolation of mycobacterial species from procine heart valve protheses - United States -- Follow-up on respiratory illness - Philadelphia -- Current trends: Carbon monoxide and liquified petroleum gas leakage hazards in recreational vehicles - New Mexico -- Surveillance of childhood lead poisoning - United States -- Influenza - United States -- Follow-up on Guillain-Barre Syndrome - United States -- International Notes: Quarantine measures -- Influenza vaccine recommendations. ; Table I. Cases of specified notifiable diseases: United States -- Table II. Notifiable diseases of low frequency -- Table III. Cases of specified notifiable diseases: United States for weeks ended February 5, 1977 and February 7, 1976 -- Table IV. Deaths in 121 United States cities week ending February 5, 1977.