How can an unvaccinated kid infect and kill your child if your child was vaccinated?
No vaccine is 100% effective. So "herd immunity" still marginally benefits the vaccinated.
How can an unvaccinated kid infect and kill your child if your child was vaccinated?
No vaccine is 100% effective. So "herd immunity" still marginally benefits the vaccinated.
So show me a study on how effective the vaccine is? There are lots of other reasons for disease rates plummeting which are more to do with isolation practices and good hygenie.
http://www.amazon.com/Dissolvi...
This is a lift from an AC post
Where is the evidence for a working measles vaccine? There is no blinded RCT. It sure sounds like the observational evidence is confounded.
“A likely reason for this is that the case may have been misdiagnosed as a non-specific viral illness. Measles has become relatively uncommon in Singapore with two decades of widespread measles vaccination, and especially after the second dose policy was implemented in 1998. Many primary care doctors may not even see a single case of measles in a year. This makes diagnosis more difficult.”
http://www.ncbi.nlm.nih.gov/pu...
“This was not a blind study, since the investigators knew which children had received measles vaccine. It seems probable that the occurrence of so much ‘measles-like’ illness in the vaccinated children was a reflexion of the difficulty in making a firm diagnosis of measles in the African child at one visit.”
http://www.ncbi.nlm.nih.gov/pm...
“As only approximately 7% of the clinically-diagnosed cases of measles reported locally turned out to be measles by laboratory testing, there is a need for laboratory confirmation of measles to avoid misidentification of cases and improve disease surveillance.(2)”
http://www.ncbi.nlm.nih.gov/pu...
“Before the introduction of measles vaccines, measles virus infected 95%–98% of children by age 18 years [1–4], and measles was considered an inevitable rite of passage. Exposure was often actively sought for children in early school years because of the greater severity of measles in adults.”
http://jid.oxfordjournals.org/...
"“It is evident from Table IV that many children in all three groups were unwell and that the proportion was greatest in the live-vaccine group (61 %), less in the killed/live-vaccine group (54%), and least in the unvaccinated group (38%)...
Table VI shows the cases of measles reported by the parents and those seen and diagnosed by the doctor. Of the total cases reported the doctor saw about 60%, and, of these, confirmed the parents' diagnosis in 93 % in the control group, 64% in the killed/live-vaccine group, and 70% in the live vaccine group."
http://www.ncbi.nlm.nih.gov/pm...
"Measles
Evidence from cohort studies
Effectiveness against measles was investigated in three cohort studies (Marin 2006; Marolla 1998; Ong 2007)...
There was a lack of adequate description of exposure (vaccine content and schedules) in all cohort studies. Another recurring problem was the failure of any study to provide descriptions of all outcomes monitored. A lack of clarity in reporting and systematic bias made comparability across studies and quantitative synthesis of data impossible."
http://www.ncbi.nlm.nih.gov/pu...
" Indeed, an average of only 100 cases of measles are confirmed annually [32], despite the fact that >20,000 tests are conducted [28], directly suggesting the low predictive value of clinical suspicion alone. "
http://jid.oxfordjournals.org/...
"Our data demonstrate that regression analysis shows only limited correlation between NT results and the ELISA values. This is in agreement with other reports [4]. Similar limitations in the correlation were also reported for other viruses like Cytomegalovirus (CMV) [10]. In case of the gamma globulin samples, the low correlation might reflect the wider spectrum and heterogeneity of the involved or measured measles antibodies."
http://www.ncbi.nlm.nih.gov/pu...