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Published on: November 5, 2019
[Global spread of meningococcal serogroup W135]
Dorthe Vestergård1, Kim P David
1Valby Langgade 8, 3. th., DK-2500 Valby. dorthevest@yahoo.dk
Abstract:
Worldwide, meningococcal meningitis and sepsis cause 500,000 cases of illness and 50,000 deaths annually. The increase in global travel activity has resulted in a change in the epidemiology of infectious diseases, and an accumulation of evidence now indicates a connection between pilgrimage and the spread of meningococcal serogroup W135. During the past decade a number of cases of meningococcal disease caused by serogroup W135 have been observed in West Africa. The epidemiology of meningococcal disease in the meningitis belt has changed and this calls for awareness when counselling travellers.
Insights
Meningococcal meningitis and sepsis cause 50,000 deaths yearly. Increased global travel and pilgrimages are linked to the spread of meningococcal serogroup W135, particularly in West Africa.
Area of Science:
- Epidemiology of infectious diseases
- Microbiology
- Public Health
Context:
- Meningococcal meningitis and sepsis result in 500,000 illnesses and 50,000 deaths annually worldwide.
- Global travel increases the risk of infectious disease spread.
- Evidence links pilgrimage travel to the dissemination of meningococcal serogroup W135.
Purpose:
- To highlight the changing epidemiology of meningococcal disease.
- To inform about the association between pilgrimage and meningococcal serogroup W135 spread.
- To raise awareness for travellers visiting endemic areas.
Summary:
- Meningococcal disease, caused by Neisseria meningitidis, remains a significant global health threat.
- Serogroup W135 strains have emerged as a concern, particularly in West Africa.
- Changes in disease patterns necessitate updated travel health advice.
Impact:
- Increased awareness among travellers and healthcare providers regarding meningococcal disease risks.
- Potential for revised vaccination recommendations for travellers to affected regions.
- Enhanced surveillance strategies to monitor meningococcal serogroup W135 epidemiology.
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