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The meningitis outbreak returns to Niger: Concern, efforts, challenges, and recommendations
Olivier Sibomana1, Clyde Moono Hakayuwa2
1Department of General Medicine and Surgery, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda.
Abstract:
Meningitis, a disease that commonly manifests in African meningitis belt, continues to be a public health problem as it is a fatal disease that leave survivors with long-term effects. Most cases of meningitis are due to bacterial and viral infection, although parasites, fungus, cancer, drugs, and immune disorders can rarely cause meningitis. Stiff neck, high temperature, light sensitivity, disorientation, headaches, and vomiting are the most typical symptoms of meningitis. Niger, being in African meningitis belt, has been affected by many meningitis outbreaks. Since 2015, a total of 20,789 cases and 1369 fatalities (CFR 6.6%) have been documented in Niger. In contrast to earlier seasons, the current outbreak of meningitis in Niger exhibits both an increase in the number of cases and a rise in the growth rate. A total of 559 cases of meningitis, including 18 fatalities (overall CFR 3.2%), were reported in the Zinder Region, southeast of Niger, from 1 November 2022 to 27 January 2023, compared to 231 cases reported from 1 November 2021 to 31 January 2022. In the current outbreak, the Neisseria meningitidis serogroup C (NmC) is responsible for the majority of laboratory confirmed cases (104/111; 93.7%). To organize the response to the outbreak, a global team of WHO and other partners, including MSF and UNICEF, has been sent to Niger. Even though there are many challenges in battle against meningitis in Niger, immunization, antibiotics administration and strong disease surveillance are recommended techniques to cope with the current meningitis outbreak in Niger.
Insights
Niger faces a severe meningitis outbreak, with the current season showing increased cases and a higher growth rate. Neisseria meningitidis serogroup C is the primary cause, necessitating urgent public health interventions like immunization and surveillance.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- Meningitis remains a significant public health concern in the African meningitis belt, characterized by high fatality rates and long-term effects in survivors.
- Niger, located within this belt, has experienced recurrent meningitis outbreaks, with a notable increase in cases and growth rate during the recent season.
- Typical meningitis symptoms include stiff neck, fever, light sensitivity, disorientation, headaches, and vomiting.
Purpose of the Study:
- To report on the current meningitis outbreak in Niger, detailing case numbers, fatalities, and the causative agent.
- To analyze the epidemiological trends of the outbreak in the Zinder Region compared to previous periods.
- To highlight the role of Neisseria meningitidis serogroup C in the ongoing epidemic.
Main Methods:
- Retrospective analysis of meningitis case data reported in Niger, specifically from November 1, 2022, to January 27, 2023.
- Comparison of current outbreak data with historical data from November 1, 2021, to January 31, 2022.
- Laboratory confirmation of causative agents, identifying Neisseria meningitidis serogroup C (NmC) in confirmed cases.
Main Results:
- From November 1, 2022, to January 27, 2023, the Zinder Region reported 559 meningitis cases with 18 fatalities (CFR 3.2%), a significant increase from 231 cases in the same period the previous year.
- The overall documented cases in Niger since 2015 reached 20,789 with 1369 deaths (CFR 6.6%).
- Neisseria meningitidis serogroup C (NmC) was identified as the predominant cause in the current outbreak, confirmed in 93.7% (104/111) of laboratory-confirmed cases.
Conclusions:
- The current meningitis outbreak in Niger, driven by NmC, demonstrates an alarming increase in cases and transmission rate.
- International collaboration involving WHO, MSF, and UNICEF is crucial for managing the outbreak response.
- Recommended strategies to combat the outbreak include enhanced immunization campaigns, prompt antibiotic administration, and robust disease surveillance systems.
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