Search PubMed⌕ Search

Biomedical subjects

P Cottagnoud

Publications and source records attributed to P Cottagnoud.

39 records · Page 3Linked to original sources

Inhibition of HSV-1 and vaccinia virus replication by cephalosporin derivatives.

Derivatives of beta-lactam antibiotics of the cephalosporin type at 0.02-1 mM concentrations interfered with in vitro replication of two DNA-containing viruses, herpes simplex I and vaccinia, but showed no effects on two RNA-viruses, lymphocytic choriomeningitis virus and vesicular stomatitis virus, or on cell viability. The exact structure of the active compounds remains unknown, but opening of the beta-lactam ring appears to be a prerequisite for their formation. Whereas cephalosporin derivatives were most active, no active products were obtained from penicillins and monobactams. The potential of these unexpected antiviral effects of widely used beta-lactam antibiotics remains subject of further study.

Animals↗

Haemophilus influenzae infections among hospitalized adult patients.

BACKGROUND: Relatively few data are available about Haemophilus influenzae (Hi) infection among adults. MATERIALS AND METHODS: We studied all adult patients with Hi infection hospitalized between 1988 and 1997 at the University Hospital of Berne. Data were abstracted retrospectively from clinical charts and microbiology records using a standardized questionnaire. RESULTS: 12 invasive and 19 noninvasive Hi infections were observed during the study period. The main clinical manifestations were pneumonia (38.7%), bronchitis (29.0%) and meningitis (12.9%). Most patients (71.8%) had an underlying condition. Lethality was high (22.6%), especially in pneumonia patients (50%). The frequency of meningitis caused by Hi serotype b (Hib) seemed to decrease after 1990 when conjugated vaccines against Hib were introduced. CONCLUSION: Hi remains an important cause of lower respiratory and invasive disease associated with high lethality among polymorbid adult patients. The frequency of Hib infections may also decrease in adults due to herd immunity induced by universal vaccination of children.

Adolescent↗