Posts Tagged ‘Vaccines’
Another Reasons Vaccines Could be Useless for You
View the original article here from Mercola.com
A new discovery could explain why many vaccines do not work as well for some as they do for others. Scientists showed that Mycobacterium chelonae, a common form of bacteria found in soil and water, can decrease the effectiveness of a vaccine used to prevent tuberculosis.
The researchers studied mice, some of whom had been exposed to M. chelonae and some of whom had not been. When they were subsequently given the vaccine, the mice with prior exposure to the bacteria produced higher amounts of suppressive chemical signals.
Science Daily reports:
“Then the researchers extracted certain white blood cells with known suppressive functions from both exposed and unexposed mice. After transferring these cells into separate groups of unexposed mice, they found that recipients of suppressor cells from M. chelonae exposed mice did not respond as strongly to BCG vaccine as recipients of suppressor cells from unexposed donor mice.”
This could help explain why many immunological therapies and vaccines that seem to work in the lab fall short in the real world — common environmental exposures could be influencing how well they work.
How seizure risk doubles for infants given the MMRV vaccine
Source: http://www.webmd.com
The MMR or Mumps, Measles and Ruebella vaccine now has an added component for the Chicken Pox. The only problem is the vaccine is showing a rise in the risk of seizure and other complications.
Here’s what the good folks over at WebMD have to say about it. …
“The risk of fever-related seizures in infants nearly doubles with the four-in-one measles–mumps-rubella-chickenpox vaccine (MMRV) compared to when the measles-mumps-rubella (MMR) vaccine and chickenpox vaccine are given separately, according to a new study.
Even so, the risk of febrile seizures — convulsions brought on by fever — is low with either approach, says researcher Nicola P. Klein, MD, PhD, a research scientist at the Kaiser Permanente Northern California Division of Research and co-director of the Kaiser Permanente Vaccine Study Center, Oakland.”
You can read more about this at their website:
http://children.webmd.com/vaccines/news/20100628/seizure-risk-rises-with-4in1-vaccine
Related articles by Zemanta
- Combination MMRV vaccine linked with two-fold risk of seizures (physorg.com)
- Combination MMRV vaccine linked with 2-fold risk of seizures (eurekalert.org)
- Vaccine combo increases risk of fever seizures in young kids (philly.com)
- Vital Signs: Childhood: Combination Vaccine and Seizure Risk (nytimes.com)