Latest Streptococcaceae Stories

2005-08-16 22:03:15

HONG KONG (Reuters) - A butcher at one of Hong Kong's leading supermarket chains has contracted a pig-borne disease that has infected over 200 people and killed 39 in southwest China, the city's Health Department said. The 44-year-old man, who was not identified, is the fourth person to become infected with the Streptococcus suis bacteria in Hong Kong since the outbreak in China was first reported in June, and the ninth person to catch the disease in the city this year. The report...

2005-08-11 13:29:38

HONG KONG (Reuters) - A 78-year-old woman in Hong Kong has contracted a pig-borne disease that has killed 39 people in southwest China in recent weeks. The case is the third in Hong Kong since an outbreak of the disease, caused by the Streptococcus suis bacteria, began in China's Sichuan province around June. None of the three people had traveled recently outside Hong Kong. A government spokesman said the woman was in stable condition in hospital. She developed fever and pain in her...

2005-07-24 01:37:49

Millions of bacteria live within the recesses of our noses and upper respiratory tracts, waiting for a chance to infiltrate and infect. But long before these bacteria break through our immune defenses, they must first compete against other bacterial species to colonize the mucus-lined surfaces of our noses. Competition between two common nose bacteria involves some interesting trickery, according to a new study in PLoS Pathogens. "We're looking at how bacteria use their host, and we've found...

2004-11-25 03:00:18

ABSTRACT. Objective. A 4-year longitudinal study of school-aged children was conducted to describe the clinical characteristics and epidemiologic features of infections with group A streptococci (GAS). Methods. Between 1998 and 2002, surveillance throat cultures were performed twice per month (October to May) for a cohort of elementary school children in Pittsburgh, Pennsylvania. In addition, throat cultures were obtained during any respiratory illness. Erythromycin and clindamycin...

Latest Streptococcaceae Reference Libraries

2011-04-28 14:45:47

Streptococcus salivarius is a species of spherical, Gram-positive bacteria which colonize the mouth and upper respiratory tract of humans a few hours after birth, making further exposure to the bacteria harmless. The bacterium is an opportunistic pathogen which rarely makes its way into the bloodstream where it is associated with septicemia cases in people with neutropenia. It has different characteristics when exposed to different environmental nutrients. In the lab a SYTA plate is used...

2011-04-28 14:40:22

Streptococcus pyogenes is a spherical, Gram-positive bacterium is the cause of Group A streptococcal infections. It displays streptococcal group A antigen on its cell wall. When it is cultured on blood agar plates it produces large zones of beta-hemolysis. They are catalase-negative and in ideal conditions it has an incubation period of about 1-3 days. It is an infrequent part of the skin flora. It is the cause of many important human diseases, ranging from mild superficial skin infections...

2011-04-28 14:27:08

Streptococcus pneumoniae, or pneumococcus, is Gram-positive, alpha-hemolytic, bile-soluble aerotolerant, anaerobic member of the genus Streptococcus. It was recognized as a major cause of pneumonia in the late 19th century and is thus the subject of many humoral immunity studies. It causes many other types of pneumococcal infections other than pneumonia including acute sinusitis, otitis media, meningitis, bacteremia, sepsis, septic arthritis, peritonitis, cellulites, and brain abscess. It...

2011-04-26 23:26:27

Streptococcus oralis is a Gram positive bacterium that grows characteristically in chains. On a Wilkins-Chalgren agar plate it will form slam white colonies. It is classified as a member of the streptococcus mitis group and is found in high numbers in the oral cavity. S. oralis produce neuraminidase and an IgA protease and cannot bind α-amylase.

2011-04-26 23:21:38

Streptococcus mutans is a Gram-positive cocci, Facultative anaerobic bacterium commonly found in the human oral cavity and is a significant contributor to tooth decay. J Kilian Clarke first described the microbe in 1924. The first colonizers of the tooth surface are mainly Neisseria spp. and streptococci, including S. mutans. The pioneer species changes the local environmental conditions through growth and metabolism thus allowing more fastidious organisms to further colonize after them,...

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