Nigeria has made measurable progress against malaria.
According to the Federal Ministry of Health and Social Welfare, malaria prevalence declined from 42% in 2010 to 15% in 2025. That is a major improvement and reflects years of investment in mosquito nets, preventive treatment, diagnosis, treatment, surveillance and other malaria-control interventions.
Yet there is an uncomfortable reality behind that progress: Nigeria still carries one of the heaviest malaria burdens in the world.
The country continues to account for a disproportionately large share of global malaria cases and deaths. Children, pregnant women and communities with poor access to healthcare remain particularly vulnerable.
So how can malaria prevalence fall substantially while malaria remains such a serious public health problem?
The answer lies in understanding what prevalence means, how malaria transmission differs across Nigeria, the country's enormous population, gaps in prevention and treatment, and why malaria elimination requires much more than treating people when they develop fever.
Malaria Is Still a Major Public Health Problem in Nigeria
Malaria is caused by Plasmodium parasites and is transmitted mainly through the bites of infected female Anopheles mosquitoes.
The most dangerous malaria parasite, Plasmodium falciparum, dominates transmission across much of sub-Saharan Africa.
Malaria is both preventable and curable. But without prompt diagnosis and effective treatment, uncomplicated malaria can progress to severe disease.
The World Health Organization's malaria guidance identifies infants, children under five, pregnant women and girls, travellers and people living with HIV among groups at increased risk of severe malaria.
Nigeria's burden is particularly important.
According to the WHO World Malaria Report 2025 Nigeria Country Profile, Nigeria remains one of the countries carrying the greatest malaria burden globally.
Globally, WHO estimated 282 million malaria cases and 610,000 deaths in 2024. About 95% of both cases and deaths occurred in the African Region.
Nigeria alone accounted for approximately 31.9% of malaria deaths in the African Region in 2024, according to the WHO malaria fact sheet.
That makes progress in Nigeria important not only for Nigerians but for global malaria control.
Malaria Prevalence Has Fallen to 15%. What Does That Actually Mean?
In August 2026, Nigeria's Federal Ministry of Health and Social Welfare announced that findings from the 2025 Nigeria Malaria Indicator Survey showed malaria prevalence had declined from 42% in 2010 to 15% in 2025.
The Ministry described the decline as evidence of progress from sustained malaria-control interventions.
You can read the Federal Ministry of Health's malaria prevalence and chemoprevention announcement.
But this figure needs to be interpreted carefully.
A malaria prevalence of 15% does not mean that only 15% of Nigerians will develop malaria during a year.
Prevalence measures the proportion of a defined population found to have malaria infection at a particular point or during a specified survey period, depending on the survey methodology.
Annual malaria cases are different.
Someone can become infected, recover and become infected again later. In areas with substantial transmission, repeated infections can occur.
This distinction helps explain why falling prevalence can coexist with a very large number of malaria cases.
Nigeria's Population Changes the Mathematics
Nigeria has one of the largest populations in the world.
That matters enormously.
Even when the proportion of people affected by a disease falls, the absolute number of infections can remain very large when hundreds of millions of people are exposed.
This is one reason percentages should not be interpreted in isolation.
A decline in malaria prevalence is meaningful progress. But reducing prevalence and eliminating malaria are not the same achievement.
Nigeria must continue reducing both infection and transmission while dealing with population growth, unequal healthcare access, environmental conditions and differences in malaria transmission between regions.
Malaria Risk Is Not the Same Everywhere in Nigeria
It is tempting to discuss malaria in Nigeria as though transmission were uniform from Sokoto to Lagos and from Borno to Rivers.
It is not.
Rainfall, temperature, mosquito ecology, housing conditions, population movement, environmental conditions and access to prevention all influence transmission.
In northern parts of Nigeria, malaria transmission tends to be more strongly associated with the rainy season.
In many southern areas, climatic conditions can support transmission for much more of the year.
This distinction has practical consequences because malaria prevention strategies need to match local transmission patterns.
An intervention that works particularly well where transmission rises sharply for several months each year may not be sufficient in an area where children face exposure throughout most of the year.
That is one reason Nigeria is now considering expanding Perennial Malaria Chemoprevention.
What Is Seasonal Malaria Chemoprevention?
Seasonal Malaria Chemoprevention, usually abbreviated as SMC, involves giving antimalarial medicines to eligible children at defined intervals during periods when malaria transmission is particularly high.
The aim is prevention.
Children do not have to be sick before receiving the preventive medicines.
SMC has become an important malaria-control intervention in areas of the Sahel and sub-Sahel where transmission is highly seasonal.
Nigeria has implemented SMC particularly in northern states where malaria transmission rises during the rainy season.
The Federal Ministry of Health says the intervention has contributed significantly to reducing malaria-related illness and deaths among children in eligible areas.
But that raises another question.
What about children living where malaria transmission continues throughout the year?
That is where Perennial Malaria Chemoprevention becomes important.
What Is Perennial Malaria Chemoprevention?
Perennial Malaria Chemoprevention, or PMC, provides preventive antimalarial treatment to young children living in areas where malaria transmission occurs for much of the year.
The strategy was previously known as intermittent preventive treatment of malaria in infants.
Nigeria began implementation research on PMC in 2023, focusing particularly on children under 24 months living in areas that do not qualify for Seasonal Malaria Chemoprevention.
In August 2026, the Federal Government announced that evidence from the research was sufficiently promising for the Ministry to begin policy processes toward wider introduction of PMC.
The government is also assessing cost effectiveness before large-scale implementation.
This matters particularly for southern Nigeria, where malaria transmission can be perennial.
PMC does not replace mosquito nets, diagnosis, treatment or environmental control.
It adds another layer of protection for particularly vulnerable children.
Why Children Under Five Remain Particularly Vulnerable
Young children have not developed the same degree of acquired immunity to malaria that may develop after repeated exposure in older people living in endemic areas.
This makes severe malaria especially dangerous in early childhood.
WHO estimates that children under five accounted for about 75% of malaria deaths in the African Region in 2024.
Severe malaria can cause complications including:
severe anaemia;
seizures;
impaired consciousness;
respiratory distress;
organ dysfunction; and
death.
A child with fever, weakness, vomiting, difficulty feeding, convulsions, unusual sleepiness or breathing difficulty needs prompt medical assessment.
Malaria should never be assumed to be harmless simply because it is common.
Fever Does Not Automatically Mean Malaria
One of the most important changes in malaria management is the move away from treating every fever as malaria.
Fever has many possible causes.
They include malaria, respiratory infections, urinary tract infections, typhoid fever, dengue and other infectious diseases.
Treating every fever with antimalarial medicines can delay the diagnosis of the actual illness.
WHO recommends confirming suspected malaria with parasite-based diagnostic testing, using either quality-assured rapid diagnostic tests or microscopy, before treatment whenever possible.
This is particularly important in Nigeria, where presumptive treatment has historically been common.
Testing helps ensure that people with malaria receive appropriate treatment while those without malaria can be investigated for other causes of illness.
How Is Uncomplicated Malaria Treated?
Confirmed uncomplicated P. falciparum malaria is generally treated using an artemisinin-based combination therapy, commonly called an ACT.
The exact treatment used should follow national guidelines and be appropriate for the patient.
People should avoid buying random combinations of antimalarial medicines or stopping treatment simply because they feel better.
Incorrect use of antimalarial medicines can contribute to treatment failure and potentially increase the pressure that drives drug resistance.
Severe malaria is a medical emergency and requires urgent treatment in an appropriate health facility.
Mosquito Nets Still Matter
Insecticide-treated mosquito nets remain one of the core tools for malaria prevention.
They work in two ways.
First, the physical net creates a barrier between a sleeping person and mosquitoes.
Second, insecticide on an appropriately treated net can kill or repel mosquitoes that contact it.
But owning a mosquito net is not the same as using one consistently.
Nets should be used correctly and regularly, particularly by young children and pregnant women.
Damaged nets should be replaced when appropriate, and households should follow current public health guidance regarding the care of insecticide-treated nets.
Malaria Prevention Requires More Than Mosquito Nets
There is no single intervention capable of eliminating malaria from Nigeria.
Effective prevention requires layers of protection.
These include:
insecticide-treated nets;
appropriate indoor vector-control interventions;
prompt access to malaria testing;
effective treatment;
preventive treatment during pregnancy;
seasonal or perennial chemoprevention where appropriate;
malaria vaccination for eligible children where introduced;
environmental management;
effective surveillance; and
strong primary healthcare services.
The combination required can differ between communities.
That is why increasingly targeted malaria programmes are important.
Malaria During Pregnancy
Pregnancy changes the risks associated with malaria.
Malaria infection during pregnancy can contribute to maternal anaemia and increase the risk of poor pregnancy outcomes, including low birth weight.
Preventing malaria is therefore an important component of antenatal care in malaria-endemic areas.
Pregnant women should attend antenatal care early and consistently so that they can receive recommended preventive interventions and appropriate assessment when symptoms occur.
Self-treatment during pregnancy should be avoided because treatment decisions can depend on the stage of pregnancy and severity of disease.
What About Malaria Vaccines?
Malaria vaccines have added another tool to malaria prevention.
WHO recommends malaria vaccines for children living in areas with moderate or high P. falciparum transmission as part of a comprehensive malaria-control strategy.
Vaccination does not mean other interventions can stop.
A vaccinated child may still need mosquito-net protection, appropriate chemoprevention where recommended and prompt testing when illness occurs.
The value of malaria vaccination comes from adding another layer of protection rather than replacing existing interventions.
Why Eliminating Malaria Is Harder Than Controlling It
Reducing malaria is one challenge.
Interrupting transmission sufficiently to achieve elimination is much harder.
Nigeria faces several obstacles.
Population size
Providing consistent prevention, diagnosis and treatment across a population of hundreds of millions requires enormous resources and coordination.
Unequal healthcare access
Access to testing and effective treatment varies considerably between communities.
Private-sector treatment
Many Nigerians first seek treatment from pharmacies, patent medicine vendors and private health facilities.
If those encounters are not captured effectively by surveillance systems, public health authorities may have an incomplete picture of transmission.
Insecticide and drug resistance
Mosquito resistance to insecticides and parasite resistance to medicines can undermine interventions that previously worked well.
Climate and environment
Rainfall, temperature, standing water, drainage and other environmental conditions influence mosquito breeding and transmission.
Conflict and displacement
Insecurity and population displacement can disrupt routine healthcare, vaccination, mosquito-net distribution and surveillance.
Funding
Malaria control at Nigeria's scale requires sustained financing.
Short campaigns cannot replace functioning health systems.
Surveillance May Be One of Nigeria's Most Important Malaria Tools
Malaria elimination depends on knowing where transmission is occurring, who is becoming infected and whether interventions are working.
Good surveillance makes malaria programmes more targeted.
Instead of distributing resources uniformly, health authorities can identify communities with persistent transmission and direct interventions accordingly.
Nigeria's new National Malaria Strategic Plan 2026–2030 places continued emphasis on strengthening health systems, integrating malaria services and using evidence to guide interventions.
The Federal Ministry of Health describes malaria elimination as a national priority.
You can read the Federal Government's National Malaria Strategic Plan 2026–2030 announcement.
What Can Nigerian Households Do?
National malaria elimination requires government action, but households still have an important role.
Use insecticide-treated mosquito nets consistently.
Reduce avoidable mosquito breeding sites around the home where possible.
Seek testing when malaria is suspected instead of automatically assuming every fever is malaria.
Complete prescribed treatment.
Take children with severe symptoms to an appropriate health facility promptly.
Pregnant women should attend antenatal care and receive malaria-prevention interventions recommended for pregnancy.
Parents should also follow current guidance on malaria vaccination and chemoprevention where these interventions are available.
Does Falling Malaria Prevalence Mean Nigeria Is Winning?
It means Nigeria has made progress.
A decline from 42% malaria prevalence in 2010 to 15% in 2025 should not be dismissed.
But neither should it create complacency.
Nigeria still contributes disproportionately to malaria deaths in Africa and globally.
The next phase requires moving beyond broad national interventions toward increasingly precise strategies based on geography, age, transmission pattern and local evidence.
Perennial Malaria Chemoprevention is one example.
Better surveillance is another.
Vaccination adds another tool.
But none replaces the fundamentals: functioning primary healthcare, reliable diagnosis, effective treatment, vector control and sustained prevention.
Frequently Asked Questions
Is malaria still common in Nigeria?
Yes. Although national malaria prevalence has fallen considerably, malaria remains endemic and Nigeria continues to carry one of the world's largest malaria burdens.
Does every fever in Nigeria mean malaria?
No. Many illnesses can cause fever. Where testing is available, suspected malaria should be confirmed using a quality-assured rapid diagnostic test or microscopy before treatment.
Can malaria be prevented completely by sleeping under a mosquito net?
Mosquito nets significantly reduce risk but do not provide absolute protection. Effective malaria prevention uses several interventions together.
What is the difference between SMC and PMC?
Seasonal Malaria Chemoprevention is designed primarily for areas where malaria transmission rises sharply during a particular season. Perennial Malaria Chemoprevention is intended for young children living where transmission occurs for much of the year.
Can someone get malaria more than once?
Yes. Previous malaria infection does not provide complete lifelong protection. People living in endemic areas can become infected repeatedly.
Is malaria curable?
Yes. Malaria is curable when appropriately diagnosed and treated, but severe malaria can become life-threatening and requires urgent medical care.
The Bottom Line
Nigeria's falling malaria prevalence is encouraging, but the country is nowhere near the point where malaria can be treated as a solved problem.
The real challenge now is converting progress into sustained reductions in infections and deaths.
That means protecting young children, improving prevention during pregnancy, expanding appropriate chemoprevention, strengthening diagnosis, ensuring effective treatment, deploying vaccines appropriately and building surveillance capable of identifying where transmission persists.
For ordinary Nigerians, one message remains particularly important:
Do not assume every fever is malaria, and do not assume malaria is harmless because it is common.
Testing, appropriate treatment and timely medical care can save lives.
References
Federal Ministry of Health and Social Welfare, Nigeria. (2026). FG Says Malaria Prevalence Drops to 15%; Moves to Scale Up Perennial Malaria Chemoprevention.
https://health.gov.ng/fg-says-malaria-prevalence-drops-to-15-moves-to-scale-up-perennial-malaria-chemoprevention/
Federal Ministry of Health and Social Welfare, Nigeria. (2026). FG Moves to End Malaria, Develops New National Malaria Strategic Plan 2026–2030.
https://health.gov.ng/fg-moves-to-end-malaria-develops-new-national-malaria-strategic-plan-2026-to-2030/
World Health Organization. (2026). Malaria 2025 Nigeria Country Profile.
https://www.who.int/publications/m/item/malaria-2025-nigeria-country-profile
World Health Organization. (2025). Malaria: Fact Sheet.
https://www.who.int/news-room/fact-sheets/detail/malaria
World Health Organization. (2025). Malaria: Questions and Answers.
https://www.who.int/news-room/questions-and-answers/item/malaria
World Health Organization Regional Office for Africa. Malaria.
https://www.afro.who.int/health-topics/malaria
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