PMID- 3916646 OWN - NLM STAT- MEDLINE DCOM- 19880112 LR - 20201209 IS - 0325-7541 (Print) IS - 0325-7541 (Linking) VI - 17 IP - 4 DP - 1985 TI - [Characterization of strains of Escherichia coli isolated from calves with neonatal diarrhea]. PG - 203-8 AB - Thirty fecal samples of diarrheic calves from a beef herd with previous history of neonatal diarrhea were cultured for isolation of Escherichia coli K99 (+) and for enterotoxigenic tests. The age distribution of sampled calves was: 1 animal less than 6 days old, 21 between 7-15 days old and 8 between 16-30 days old. Although most strains were classified as Isaacson et al (16) biotype four, they were negative for detection of K99 antigen by slide agglutination test. The assay for heat-stable (ST) and heat-labile (LT) enterotoxins by intragastric infant mouse inoculation and ELISA tests, respectively, were negative. More than 93% of the E. coli strains were sensitive to ampicillin, colistin, gentamycin and nitrofurantoin . FAU - Campero, C AU - Campero C AD - Unidad de Investigaciones en Patologia Animal, INTA Balcarce, Buenos Aires, Argentina. FAU - Odeon, A AU - Odeon A FAU - Binsztein, N AU - Binsztein N FAU - Smith, J AU - Smith J FAU - Cipolla, A AU - Cipolla A LA - spa PT - Journal Article TT - Caracterizacion de cepas de Escherichia coli aisladas de terneros afectados de diarrea neonatal. PL - Argentina TA - Rev Argent Microbiol JT - Revista Argentina de microbiologia JID - 8002834 RN - 0 (Anti-Bacterial Agents) SB - IM MH - Animals MH - Anti-Bacterial Agents/pharmacology MH - Cattle MH - Cattle Diseases/*microbiology MH - Diarrhea/microbiology/*veterinary MH - Escherichia coli/classification/*isolation & purification MH - Microbial Sensitivity Tests EDAT- 1985/01/01 00:00 MHDA- 1985/01/01 00:01 CRDT- 1985/01/01 00:00 PHST- 1985/01/01 00:00 [pubmed] PHST- 1985/01/01 00:01 [medline] PHST- 1985/01/01 00:00 [entrez] PST - ppublish SO - Rev Argent Microbiol. 1985;17(4):203-8.