Sökning: "serotype"

Visar resultat 16 - 20 av 99 avhandlingar innehållade ordet serotype.

1. 16. Invasive group A streptococcal infection : host and pathogen interactions

   Författare :Björn K G Eriksson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Group A streptococci; invasive infections; erysipelas; Streptococcal Toxic Shock Syndrome STSS ; epidemiology; M1 serotype streptococcal pyrogenic exotoxins Spe ; SpeA; toxin neutralization; opsonization;

   Sammanfattning : Invasive group A streptococcal (GAS) infections were studied in 229 patients with a clinical diagnosis of erysipelas and 151 patients with GAS bacteremia, respectively. Beta-hemolytic streptococci were identified in about a third of the erysipelas patients, mostly group A, whereas group G streptococci were identified in about half as many episodes. LÄS MER

3. 17. Human salmonellosis : impact of travel and trade from a Swedish perspective

   Författare :Birgitta De Jong Skierus; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Salmonella; salmonellosis; reptile-associated salmonellosis; travel-associated salmonellosis; S. Enteritidis; European salmonella incidence; serotype; serovar; sewage treatment plants; antibiotic resistant; pre-travel advice.;

   Sammanfattning : Background: Salmonellosis is one of the most important gastrointestinal infections in humans. The vast majority of Swedish Salmonella cases have acquired the disease abroad, reflecting both a large number of Swedish travellers and a very favourable domestic Salmonella situation compared to other countries, mainly due to various control programs implemented in the animal food production and import regulations (e. LÄS MER

4. 18. Molecular epidemiology of streptococcus pneumoniae

   Författare :Sarah Browall; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Streptococcus pneumoniae, also named pneumococci, is often part of the normal flora in the nasopharynx of healthy children. However, pneumococci are also a major cause of morbidity and mortality world-wide, and colonization is required for pneumococci to cause severe invasive diseases such as septicaemia and meningitis. LÄS MER

5. 19. Molecular epidemiology of pneumococcal carriage and invasive disease

   Författare :Karin Sjöström; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Streptococcus pneumoniae, also known as pneumococcus, is a major contributor to morbidity and mortality worldwide. It is the main cause of respiratory tract infections such as otitis media and sinusitis, but also causes millions of deaths each year due to pneumonia, meningitis and septicemia, especially among children and the elderly. LÄS MER

7. 20. Characterization of virulence in clinical isolates of Streptococcus pneumoniae

   Författare :Erik Martin Norman; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The immune system together with competing pneumococcal strains and other bacterial species, impose a selective pressure on the pneumococcus that leads to the expansion of certain lineages and the remission of others. Our results show that the invasive disease potential varies between serotypes, and also between sequence types (STs) determined by Multi-Locus Sequence Typing (MLST). LÄS MER