Has there ever been meningitis outbreak?
Outbreaks of meningococcal disease are rare in the United States. In fact, only about 1 in 20 cases is related to outbreaks. However, outbreaks are unpredictable and the outcomes can be devastating to affected communities and organizations.
When was the first meningococcal outbreak?
Meningitis outbreak was first recorded in Geneva in 1805. Gaspard Vieusseux (1746-1814) and Andre Matthey (1778-1842) in Geneva, and Elisa North (1771-1843) in Massachusetts, described epidemic (meningococcal) meningitis. Several other epidemics in Europe and the United States were described shortly afterward.
When was the last meningitis epidemic?
In Tshopo Province, which is in the African meningitis belt, the last meningitis epidemic was reported in November 2009, with 214 cases and 18 deaths (case-fatality ratio of 8%).
When was meningococcal most prevalent?
Meningococcal disease is also seasonal: the number of cases generally peaks each year in January, February, and March. Figure 1 shows incidence rates (per 100,000 persons) of meningococcal disease in the United States by year from 1970 to 2019. The incidence rate began declining in 1995 and has remained low in 2019.
Is meningococcal a pandemic?
In the past, meningitis has been classed as a pandemic. As WHO explains, ‘the most recent meningococcal meningitis pandemic began in the mid-1990s. In 1996, almost 190,000 cases were notified to WHO in Burkina Faso, Chad, Mali, Niger, Nigeria and other countries.
Where are there meningococcal outbreaks?
There is a large, ongoing outbreak of serogroup C meningococcal disease in Florida , primarily among gay, bisexual, and other men who have sex with men, including those living with HIV. This outbreak is mostly affecting people who live in Florida but has also affected some people who have traveled to Florida.
How was meningitis treated in the past?
Treating meningitis During the Geneva epidemic of 1805, patients were treated with emetics to induce vomiting, quinine wine and bloodletting by leeches. It was believed that reducing the amount of fluid in the body by bloodletting and vomiting would relieve the pressure of inflammation.
How did meningitis start?
Bacteria that enter the bloodstream and travel to the brain and spinal cord cause acute bacterial meningitis. But it can also occur when bacteria directly invade the meninges. This may be caused by an ear or sinus infection, a skull fracture, or — rarely — some surgeries.
Where are outbreaks of meningococcal disease?
Where is meningitis most commonly found in the world?
Meningococcal disease occurs worldwide, with the highest incidence of disease found in the ‘meningitis belt’ of sub-Saharan Africa. In this region, major epidemics occur every 5 to 12 years with attack rates reaching 1,000 cases per 100,000 population.
Why does meningitis occur?
Meningitis is an inflammation (swelling) of the protective membranes covering the brain and spinal cord. A bacterial or viral infection of the fluid surrounding the brain and spinal cord usually causes the swelling. However, injuries, cancer, certain drugs, and other types of infections also can cause meningitis.
Where is meningococcal most common in the world?
N. meningitidis is found worldwide, but the highest incidence occurs in the “meningitis belt” of sub-Saharan Africa (Map 4-10). Meningococcal disease is hyperendemic to this region, and periodic epidemics during the dry season (December–June) reach up to 1,000 cases per 100,000 population.