Oct 052010

A recent study published in the Journal of the American Medical Association (JAMA) has found an association between the 7-valent pneumococcal vaccine (PCV-7) and an increase in nasopharyngeal (in the nose and throat) acquisition of pneumococcal serotype 19A strain, which is not one of the 7 strains the PCV-7 protects from. According to the authors of the study, a possible association had been observed between the use of PCV-7 vaccine and a rapid increase in serotype 19A strain acquisition, but studies had never been done to confirm this association, and the current study is the first one to address that ———->FULL ARTICLE

Sep 292010

READ THE FULL ARTICLE AT SCIENCE DAILY The number of children admitted to English hospitals with bacterial pneumonia decreased by a fifth in the two years following the introduction of a vaccine to combat the disease, according to a new study published in the journal Thorax. Bacterial pneumonia is a serious illness caused by Streptococcus pneumoniae bacteria that mostly affects babies, young children and elderly people. In Europe, around one in ten deaths in the under-fives is caused by the disease. Bacterial pneumonia usually develops as a complication following a respiratory tract infection such as influenza. Symptoms include difficulty breathing, wheezing, ———->FULL ARTICLE

Jun 072010
Pneumonia vaccine ineffective?

“Pneumonia vaccine ineffective against repeat infections: study” screams the headline. The article goes on to clarify that a study just published seems to suggest that the pneumococcal vaccines in use in Canada do not seem to perform any better than no vaccine. How is that possible? Well, so far as I can tell, it isn’t, and this seems to be another case of dubious reporting by the journalists, and careless conclusions by paper authors. I could not get my hands on a copy of the full published study the article refers to, although I will probably be able to in ———->FULL ARTICLE

May 082010

Are vaccines effective? That is another question that worried parents often ask. Do we know for sure that these vaccines do what they are supposed to do? Well, as I’ve said before, that question is very broad, so we will try to break it down into manageable bits. This entry will look and see if we can find any evidence for the efficacy of the pneumococcal vaccine in preventing pneumonia and pneumonia deaths. As usual, PubMed makes for an excellent start. A quick search there brings up this interesting study. Efficacy of 23-valent pneumococcal vaccine in preventing pneumonia and improving ———->FULL ARTICLE