Pneumococcal Vaccines – How Many Serotypes are Enough?
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Streptococcus pneumoniae causes meningitis, pneumonia, septicemia, arthritis, sinusitis and otitis media specially in children and over 65 y age groups. It contributes significantly to under-five mortality and morbidity worldwide as well as in India. Use of pneumococcal vaccine seems to be the most effective measure to decrease the disease burden and reduction of under-five mortality. Many countries have already included Pneumococcal Conjugate Vaccines (PCV) in their National Immunization Programmes (NIP). Government of India has announced recently to include PCV13 in NIP in a phased manner. Superiority of a vaccine over the other depends upon serotype coverage, vaccine efficacy, cost effectiveness and safety profile. These facts will be discussed for the vaccines available in India. Further research is warranted to know the disease burden and develop vaccines to have more serotype coverage.
KeywordsInvasive pneumococcal disease (IPD) Pneumococcal conjugate vaccine (PCV) National immunization programme (NIP)
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