In 2009/10 there were 896 cases of meningococcal disease confirmed in England and Wales. 785 of these cases were confirmed as Group B and only 17 as Group C. It's not known why some people became ill while others remained symptomless 'carriers' of the bacteria.
- Disease can occur at any age. However, most cases occur in children under four.
- The next highest incidence is recorded for teenagers between 15 and 19 years of age
- Most cases occur without any connection to other cases (sporadic cases), sometimes two or more cases are connected by those affected having close contact.
More top news
Doctors should stop telling people to "complete the course" of some antibiotics, a group of experts have warned.
Around 40 events will be staged across the UK today as nurses step up their campaign for the Government to end the cap on public sector pay.
Within the next seven days, we are going to witness some of the most significant change in the British Monarchy for many years.