NiMet Warns of High Malaria, Meningitis Risk: Calls for Vigilance

The Nigerian Meteorological Agency (NiMet) has issued a crucial health advisory, predicting high prevalence of malaria and meningitis in specific regions of the country due to anticipated climatic conditions. This information is intended to empower individuals and healthcare institutions to take proactive measures against these potentially life-threatening diseases.

High Malaria Risk in Southern and Central States:

NiMet’s 2024 seasonal climate prediction identifies coastal states like Lagos, Ondo, Delta, Bayelsa, Rivers, Akwa Ibom, and Cross River as high-risk zones for malaria due to weather patterns conducive to mosquito breeding.
Moderate vigilance is advised in parts of Ogun, Imo, and Anambra, while the remaining regions are urged to maintain some level of vigilance.


March: High vigilance is critical in the south and parts of Benue due to favorable mosquito breeding conditions. Moderate vigilance is recommended for Oyo, Ekiti, Anambra, Enugu, Ebonyi, and parts of Kwara, Kogi, and Benue states. Low vigilance is advised in the north.
April: High probability of malaria cases persists in southern states, while the risk lowers in central states.
May: As rainfall progresses northward, both the south and central regions face high chances of malaria cases.
Understanding the Link Between Climate and Disease:

NiMet emphasizes the influence of climate factors like temperature, humidity, and rainfall on the outbreak and transmission of diseases like malaria, meningitis, and heat stress.
The World Malaria Report 2023 highlights Nigeria’s significant burden, accounting for 27% of global cases and 38.5% of malaria deaths in children under five in 2022.
Meningitis Risk and Seasonal Trends:

Meningitis epidemics are also a concern, particularly in sub-Saharan Africa, due to their association with high temperatures and airborne dust.

Between 2022 and 2023, Nigeria reported over 2,700 suspected and 300 confirmed cases of meningitis across various states.
While NiMet’s predictions cannot definitively guarantee outbreaks, they offer valuable insights into the likelihood and severity of these diseases based on anticipated climatic conditions.

Institute for Climate and Society defines “seasonal climatic suitability for malaria transmission” based on specific thresholds for precipitation, temperature, and humidity.
These combined factors indicate the potential for malaria transmission in a given location.
Predictive Factors for Malaria and Meningitis:

Rainfall, temperature, and relative humidity are crucial factors in determining the level of vigilance required.
Meningitis: Mean air temperature, relative humidity, and dust concentration are primary risk factors. Rainfall, however, can significantly reduce the likelihood of outbreaks.
NiMet’s Seasonal Meningitis Predictions:

January: High vigilance is advised in parts of Sokoto, Jigawa, Yobe, Bauchi, Gombe, and Borno states due to the predicted climate.
February: High and moderate vigilance are recommended for northern states, while low vigilance is advised in specific southern and central states.

March: High vigilance areas include Sokoto, Katsina, Zamfara, Kano, Jigawa, Bauchi, Yobe, and Borno. Moderate to low vigilance is advised in other regions.

April: High vigilance remains necessary in parts of Sokoto, Zamfara, Katsina, Jigawa, Yobe, and Borno, while moderate vigilance is advised in other northern states. Low vigilance applies to most southern states.
May: As climatic conditions shift, most of the country experiences a low risk of meningitis, with the exception of the far north, where low to high vigilance is recommended.
Call to Action:

NiMet’s seasonal climate predictions serve as a valuable tool for healthcare professionals, policymakers, and individuals alike. By understanding the predicted climate patterns and their potential impact on disease prevalence, proactive measures can be implemented to mitigate the risks associated with malaria and meningitis. This may include:

Educating communities about the high-risk periods and preventive measures like mosquito nets, insect repellents, and proper sanitation practices for malaria, and vaccination for meningitis.
Enhanced surveillance and early warning systems: Implementing systems to detect and rapidly respond to potential outbreaks.