Features of epidemiology of Streptococccus pneumoniae (serotype I) in the Arctic.

Article English OPEN
Herva, Elja (2006)
  • Publisher: Co-Action Publishing
  • Journal: International Journal of Circumpolar Health (issn: 1797-237X, eissn: 1239-9736)
  • Related identifiers: doi: 10.3402/ijch.v65i5.18144

Streptococcus pneumoniae, pneumococcus,is an important human pathogen.It causes a majority of bacterial infectionsin the upper respiratory tract, such as acuteotitis media and acute sinusitis, and it is alsoone of the most common causes of bacterialpneumonia and bacterial meningitis. At thesame time, it is also a common, harmlessinhabitant of the human upper respiratorytract, especially during the first years oflife. Capsular polysaccharide is the mainvirulence factor of pneumococci. Ninetyserotypes of pneumococcal capsular polysaccharideare known at present. Abouttwenty of these are common in disease,and selections of them have been usedfor immunization against pneumococcaldisease. Pneumococci in the nasopharynxof a person are right on the spot and readyto cause an infection and illness when thereis an opportunity, e.g. a viral infection, inthe person or his/her family member. Someserotypes are more invasive than the othersand act also as primary pathogens.International Journal of Circumpolar Health 65:5 2006
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