In May 2013, Israel announced the detection of wild poliovirus type 1 (WPV1) in the south of the country (1). As reported until mid-August, during the routine monitoring of sewage samples the virus had been found in 67 sewage samples from 24 sampling sites since February 2013.
Findings in this study confirmed the herd immunity effect of immunizing young children, since invasive meningococcal disease was not only reduced among vaccinees, but in all age groups.
4CMenB has the potential to reduce serogroup B meningococcal disease substantially. Despite its potential, the vaccine may have some limitations, and it remains to be seen if booster doses will be required to sustain protection.