Vaccine short term, but still effective

Researchers believe the meningococcal disease vaccination campaign is working, despite evidence showing more than half of the children who received it have lost their immunity. A report from Auckland University's Immunisation Centre shows the injections give only short-term immunity. In many it wears off within months. However senior lecturer Helen Petousis-Harris says the $200 million mass vaccination campaign was successful, because the risk of an epidemic has gone. She says the vaccine has been evaluated for effectiveness and has been found to significantly reduce the number of cases of disease. Share this... [read full story]