| invasive group a streptococcal disease in metropolitan atlanta: a population-based assessment. | active, population-based surveillance for invasive group a streptococcal (gas) disease was conducted in laboratories in metropolitan atlanta from 1 january 1994 through 30 june 1995. clinical and laboratory records were reviewed and isolates characterized. one hundred and eighty-three cases of invasive gas disease were identified (annual incidence, 5.2 cases/100,000). the incidence was highest among blacks (9.7/100,000 per year; relative risk (rr), 1.92; confidence interval (ci), 1.69-2.19; p < ... | 1998 | 9675469 |
| survey of emm gene sequences and t-antigen types from systemic streptococcus pyogenes infection isolates collected in san francisco, california; atlanta, georgia; and connecticut in 1994 and 1995. | the variable 5' emm (m-protein gene) sequences and t-antigen types were determined from 340 systemic group a streptococcal (gas) isolates taken from hospitalized patients in san francisco, calif.; atlanta, ga.; and connecticut in 1994 and 1995. eighty percent of these isolates had emm sequences and t-antigen types in agreement with previously recorded m- and t-antigen associations. most of the remaining strains either were t nontypeable (11%) or contained emm genes encoding m proteins for which ... | 1997 | 9114412 |
| clinical utility of blood cultures in adult patients with community-acquired pneumonia without defined underlying risks. | we retrospectively examined the clinical utility of obtaining routine blood cultures before the administration of antibiotics in certain nonimmunosuppressed patients with community-acquired pneumonia (cap) admitted to the hospital during 1991. | 1995 | 7555163 |
| group a streptococcal abscesses after dtp immunization--georgia. | | 1982 | 6815473 |
| outbreaks of group a streptococcal abscesses following diphtheria-tetanus toxoid-pertussis vaccination. | two outbreaks of group a streptococcal abscesses following receipt of diphtheria-tetanus toxoid-pertussis (dtp) vaccine from different manufacturers were reported to the centers for disease control (cdc) in 1982. the clustering of the immunization times of cases, the isolation of the same serotype of streptococcus from all cases in each outbreak, and the absence of reported abscesses associated with receipt of the same lots of vaccine in other regions of the country, suggest that each outbreak w ... | 1985 | 3881728 |
| cluster of deaths from group a streptococcus in a long-term care facility--georgia, 2001. | invasive group a streptococcus (gas) affects approximately 10,500 persons annually; 1 in 5 patients >/=65 years die. in august 2001, cdc investigated a cluster of gas deaths in a georgia long-term care facility (ltcf). | 2005 | 15761411 |
| outbreak of invasive group a streptococcal infections in a nursing home. lessons on prevention and control. | nine outbreaks of group a streptococcal (gas) infections in nursing homes were reported to the centers for disease control (atlanta, ga) during the past two winters. we conducted an intensive epidemiologic and laboratory investigation of one of these outbreaks to determine clinical characteristics, risk factors for transmission and infection, and methods of control and prevention. | 1992 | 1580705 |
| changing epidemiology of group a streptococcal infection in the usa. | to see whether changes in the epidemiology of group a streptococcal disease in the usa have been accompanied by a corresponding change in serotype distribution, epidemiological and m-typing and t-typing data for 5193 strains sent to the centers for disease control, atlanta, between 1972 and 1988 were analysed. the proportions of m-types 1, 3, and 18 increased significantly during the study period. these m-types were more likely to be invasive, to cause fatal infection, and to occur in a cluster ... | 1990 | 1978035 |