Study finds vaccines can prevent meningitis transmission between humans
The results of the investigation into MenACWY-CRM and 4CMenB, published in the Lancet, show how the vaccines reduce the "carriage" of responsible bacteria in the nose and throats of patients, ScienceDaily reports.
The study, which tested patients between the ages of 18-24 at 10 separate locations in the United Kingdom, found that MenACWY-CRM reduced carriage rates by 39 percent. The 4CMenB vaccine reduced carriage rates between 20-30 percent.
The researchers believe the discovery may help guide how other vaccines are developed in the future, according to ScienceDaily.
"The standard practice is to vaccinate with the aim of inducing high levels of antibodies in the blood to protect against the disease, but we know that these antibodies can disappear over the course of a few months," Robert Read, a professor of infectious diseases at the University of Southampton and the lead researcher on the study, said, ScienceDaily reports. "This study is telling us that the vaccines also have an effect on carriage in the throat and explains why they can be so effective across the population."