Vaginal Carriage of Antimicrobial Resistant Lancefield Group G Streptococci among Dogs in Lagos Metropolis, Nigeria

2017 ◽  
Vol 54 (1) ◽  
pp. 8
Author(s):  
Fred Olufemi ◽  
Evelyn Okpara ◽  
Paul Akinduti ◽  
Ernest Ojo ◽  
John Nwata
Keyword(s):  
Group G Streptococci ◽  
Lancefield Group

scholarly journals Serotypes among Lancefield-group G Streptococci Isolated in Nigeria

1982 ◽  
Vol 15 (1) ◽  
pp. 123-125 ◽  
Author(s):  
S. F. Lawal ◽  
A. O. Coker ◽  
E. O. Solanke ◽  
O. Ogunbi
Keyword(s):  
Group G Streptococci ◽  
Lancefield Group

Infections Due to Lancefield Group G Streptococci

Medicine ◽  
1985 ◽  
Vol 64 (2) ◽  
pp. 75-88 ◽  
Author(s):  
CARL VARTIAN ◽  
PHILLIP I. LERNER ◽  
DAVID M. SHLAES ◽  
K. V. GOPALAKRISHNA
Keyword(s):  
Group G Streptococci ◽  
Lancefield Group

scholarly journals Food-borne outbreak of group G streptococcal sore throat in an Israeli military base

1987 ◽  
Vol 99 (2) ◽  
pp. 249-255 ◽  
Author(s):  
D. Cohen ◽  
M. Ferne ◽  
T. Rouach ◽  
S. Bergner-Rabinowitz
Keyword(s):  
Sore Throat ◽  
The Body ◽  
Food Handler ◽  
Group G Streptococci ◽  
Source Of Infection ◽  
Food Borne ◽  
Military Camp ◽  
Group A ◽  
Laboratory Investigations ◽  
Lancefield Group

SUMMARYA food-borne outbreak of sore throat caused by Lancefield group G β-haemolytic streptococci and involving 50 persons occurred in May 1983 in an Israeli military camp. All of the patients available for clinical examination had sore throat and difficulty in swallowing. Exudative tonsillitis occurred in 46% of the patients and the body temperature was above 37·5 °C in 81%. The pattern of attack was uniform over the base and 37 became ill during the night and morning of the 5 May. Thirty-two (84%) of the throat cultures taken from 37 patients grew group G β-haemolytic streptococci. Eight of 29 contacts were positive for group G β-haemolytic streptococci and 6 of the 28 foodhandlers examined had positive cultures of the same group. The organism was also isolated from one food sample. The epidemiological and laboratory investigations indicated that a food handler, a convalescent carrier of group G streptococci, might have been the source of infection. Assumptions on the potential of non-group A streptococci to cause epidemics are discussed.

scholarly journals The serotyping of hospital strains of streptococci belonging to Lancefield group C and group G

1983 ◽  
Vol 90 (1) ◽  
pp. 71-80 ◽  
Author(s):  
Androulla Efstratiou
Keyword(s):  
Animal Origin ◽  
Group A Streptococci ◽  
Human Origin ◽  
Protein Antigens ◽  
T Antigens ◽  
Group G Streptococci ◽  
Small Collection ◽  
Group A ◽  
Serious Disease ◽  
Lancefield Group

SUMMARYA collection of more than 300 strains belonging to either Lancefield group C or group G was made. The cultures had been isolated either sporadically from patients with serious disease or as apparent clusters from various nosocomial outbreaks. T-protein antigens were sought. So far, nine distinct serotypes have been found among the group G streptococci and seven serotypes amongst theStreptococcus equisimilis(group C) strains. Of the sixteen serotypes, four were the original T-types 7, 16, 20 and 21 described by Griffith (1934). Because of the similarities of representatives of the two groups to Lancefield group A streptococci (Griffith, 1934; Maxted & Potter, 1967) a few strains not unexpectedly carried T antigens usually seen in group A streptococci. Using this scheme it has been possible to serotype 76% ofS. equisimilisstrains of human origin and 82% of group G streptococci from human clinical material. A small collection of group C and group G streptococci of animal origin could not be serotyped with the experimental T-antisera.

Fatal Septic Shock Due to Lancefield Group G Streptococci.

1996 ◽  
Vol 51 (1) ◽  
pp. 57-60 ◽  
Author(s):  
P.M. Honord ◽  
A. Lozana ◽  
D. Defalque ◽  
A. Estratiou
Keyword(s):  
Septic Shock ◽  
Group G Streptococci ◽  
Lancefield Group

Invasion of HeLa cells by β-hemolytic group G streptococci

1989 ◽  
Vol 35 (4) ◽  
pp. 515-517 ◽  
Author(s):  
Swapan K. Nath
Keyword(s):  
Electron Microscopy ◽  
Hela Cell ◽  
Hela Cells ◽  
Cell Monolayer ◽  
Intracellular Bacteria ◽  
Bacterial Cells ◽  
Group G Streptococci ◽  
Gentamicin Treatment ◽  
Host Cell Membranes ◽  
Lancefield Group

The invasion of HeLa cells by β-hemolytic Lancefield group G streptococci was studied by measuring the number of bacterial cells that survive exposure to gentamicin. Approximately 50% of bacteria introduced to the HeLa cell monolayer survived gentamicin treatment, suggesting that they were intracellular. Electron microscopy of these preparations showed intracellular bacteria in the cytoplasm, not surrounded by host cell membranes. Trypsinized bacteria incubated with HeLa cells were all killed by gentamicin. It appears that the β-hemolytic group G streptococci have mechanisms for entry into human epithelial cells which may have importance in the virulence of the organisms.Key words: Virulence, invasion, HeLa cells, β-hemolytic, streptococci.

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