Giant cell pneumonia associated with parainfluenza virus type 3 infection.

Giant cell pneumonia associated with parainfluenza virus type 3 infection and chronic poliovirus type 2 meningoencephalomyelitis are documented in an infant with combined immunologic deficiency (Swiss type). Caution should be exercised in attributing cases of giant cell pneumonia to measles virus without serologic or virologic evidence.

Granulomatous synovitis and osteitis caused by Sporothrix schenckii.

Sporotrichosis must be considered in the differential diagnosis of granulomatous inflammation involving bones and joints. The organisms are difficult to demonstrate in direct smears and in histiologic sections, but they grow readily on routine fungal culture media. The cases of two patients, one with sporothrix arthritis and one with sporothrix arthritis and osteitis, are presented.

Food-borne hepatitis A in a general hospital. Epidemiologic study of an outbreak attributed to sandwiches.

In November and December 1973, an outbreak of food-borne hepatitis A occurred in a busy general hospital. Epidemiologic investigation implicated cafeteria-made sandwiches. Eventually, 44 clinical and 22 subclinical cases of hepatitis were diagnosed among hospital employees.