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Global Meningococcal ActivityReleased: February 14, 2005 The Public Health Agency of Canada (PHAC) is monitoring reports of meningococcal activity. Philippines The World Health Organization along with the Ministry of Health in the Philippines continue to conduct laboratory and epidemiological investigations and implement control measures. China The Ministry of Health in China has augmented meningitis prevention and control activities. Chad A mass immunization campaign is being carried out by the Ministry of Health with the support of WHO, UNHCR, UNICEF, Médecins sans Frontières- Holland and the International Federation of Red Cross and Red Crescent Societies. Source: World Health Organization, People's Republic of China Ministry of Health Sporadic meningococcal meningitis occurs throughout the world with seasonal variations. The largest and most frequently recurring outbreaks have been in the semi-arid area of sub-Saharan Africa, designated as the "African Meningitis Belt"; this area extends from Guinea, Senegal and southern Mauritania in the west to Ethiopia, northern Kenya and western Eritrea in the east. Worldwide, most endemic meningococcal disease is caused by serogroups A, B or C. Serogroups Y and W-135 are relatively uncommon causes of meningococcal infection in most parts of the world. Meningococcal disease is endemic in Canada with periods of increased activity occurring roughly every 10 to 15 years, with no consistent pattern. The incidence rate of meningococcal disease has varied considerably with different serogroups, age groups, geographic locations and time. There have been sporadic localized outbreaks and periods of elevated incidence of serogroup C disease during 1989-1993 and 1999-2001. From 1985 to 2001 there was an average of 305 cases of meningococcal disease reported annually. Meningococcal meningitis, a form of meningococcal disease, is a contagious disease that causes inflammation of the lining of the brain and spinal cord and can lead to rapid death or permanent brain damage, particularly in young children. Transmission of meningitis occurs by direct contact with respiratory droplets from the nose and throat of infected persons. Fifty per cent of cases occur in infants, children and adolescents < 19 years of age, with the highest risk in children < 5 years of age. Symptoms include the sudden onset of intense headache, fever, nausea, vomiting, photophobia (aversion to light) and stiff neck. Neurological signs include lethargy, delirium, coma and/or convulsions. Infants may have illness without sudden onset and stiff neck. Many infected people do not develop symptoms but can become carriers. Meningococcal disease is a medical emergency, requiring early diagnosis, hospitalization, and effective treatment. When the infection is diagnosed and treated early, antibiotics can be effective in arresting the illness and reducing fatalities. Vaccination against serotype A, C, Y and W135 is available. Recommendations
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Last Updated: 2005-02-14 | ![]() |