Abstract
Aerococcus viridans has been described as an airborne organism prevalent in occupied rooms. It has also been described as an organism having many characteristics that might cause it to be confused with streptococci or staphylococci, and this may account for the fact that the presence of A. viridans has not been reported in the hospital environment or in clinical specimens. Swab specimens were taken from 47 objects in 11 different areas in a local hospital, cultured overnight in Trypticase Soy Broth, and streaked on blood-agar and on a selective serum agar containing potassium tellurite and crystal violet. Of 85 α-hemolytic cultures isolated, 11 proved to be typical A. viridans based on diagnostic tests that also were applied to a collection of gram-positive cocci, including authentic strains of A. viridans. These organisms are gram-positive cocci with a strong tendency toward tetrad formation in broth cultures. They are predominantly aerobic, have a very weak catalase activity, and lack porphyrin respiratory enzymes. Three similar cultures also were obtained from routine clinical specimens.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- CLAUSEN O. G. THE DISCOVERY, ISOLATION, AND CLASSIFICATION OF VARIOUS ALPHA-HAEMOLYTIC MICROCOCCI WHICH RESEMBLE AEROCOCCI. J Gen Microbiol. 1964 Apr;35:1–8. doi: 10.1099/00221287-35-1-1. [DOI] [PubMed] [Google Scholar]
- COSTER E., WHITE H. R. FURTHER STUDIES OF THE GENUS PEDIOCOCCUS. J Gen Microbiol. 1964 Oct;37:15–31. doi: 10.1099/00221287-37-1-15. [DOI] [PubMed] [Google Scholar]
- DEIBEL R. H., EVANS J. B. Modified benzidine test for the detection of cytochrome-containing respiratory systems in microorganisms. J Bacteriol. 1960 Mar;79:356–360. doi: 10.1128/jb.79.3.356-360.1960. [DOI] [PMC free article] [PubMed] [Google Scholar]
- DEIBEL R. H., NIVEN C. F., Jr Comparative study of Gaffkya homari, Aerococcus viridans, tetrad-forming cocci from meat curing brines, and the genus Pediococcus. J Bacteriol. 1960 Feb;79:175–180. doi: 10.1128/jb.79.2.175-180.1960. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MEDREK T. F., BARNES E. M. The influence of the growth medium on the demonstration of a group D antigen in faecal streptococci. J Gen Microbiol. 1962 Sep;28:701–709. doi: 10.1099/00221287-28-4-701. [DOI] [PubMed] [Google Scholar]
- SHAW C., STITT J. M., COWAN S. T. Staphylococci and their classification. J Gen Microbiol. 1951 Nov;5(5 Suppl):1010–1023. doi: 10.1099/00221287-5-5-1010. [DOI] [PubMed] [Google Scholar]
- WILLIAMS R. E., HIRCH A., COWAN S. T. Aerococcus, a new bacterial genus. J Gen Microbiol. 1953 Jun;8(3):475–480. doi: 10.1099/00221287-8-3-475. [DOI] [PubMed] [Google Scholar]