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Early Signs of Lassa Fever Nigerians Should Never Ignore

Lassa fever has become a public health concern in Nigeria, especially during the dry season when outbreaks are more common. Many Nigerians confuse it with malaria or typhoid at the early stage because the symptoms are very similar. This makes early detection very important, as delayed treatment increases the chances of complications. Recognizing the first warning signs can help save lives and reduce the spread of the disease.

What is Lassa Fever?

Lassa fever is a viral infection carried mainly by rats that are common in Nigerian homes and marketplaces. The virus spreads through food or household items contaminated with rat urine or droppings. It can also spread from person to person through body fluids.

Why Early Detection Matters

Early diagnosis increases the chances of recovery because treatment is most effective within the first six days after symptoms appear. Many patients who mistake Lassa fever for malaria or typhoid waste time taking the wrong medication, which allows the virus to progress.

Early Symptoms of Lassa Fever

1. Persistent Fever That Does Not Respond to Malaria Drugs

One of the first signs is fever that continues even after taking malaria medication. Since many Nigerians treat fever as malaria by default, this warning sign is often missed.

2. General Weakness and Fatigue

People infected with Lassa fever usually feel extremely weak, even when they have not done much physical activity. The tiredness is more severe compared to normal malaria.

3. Headaches and Sore Throat

Severe headache accompanied by throat pain or discomfort can be an early signal. Unlike common flu, the sore throat may come with difficulty swallowing.

4. Muscle and Joint Pain

Pain in muscles and joints is another early sign that resembles malaria or typhoid, but in Lassa fever cases, the discomfort usually worsens rapidly.

5. Nausea and Vomiting

Many patients experience stomach upset, nausea, and occasional vomiting. This should raise concern when combined with other symptoms like fever and weakness.

6. Loss of Appetite

Infected individuals may stop eating normally and complain of lack of taste for food. This change happens quickly and should not be ignored.

Symptoms That Indicate Progression

If early warning signs are ignored, the infection may worsen and lead to more severe symptoms such as:

Bleeding from gums, nose, or other openings
Swelling of the face and neck
Chest pain and difficulty breathing
Hearing loss in some survivors

At this stage, the illness becomes harder to treat and more life-threatening.

Difference Between Lassa Fever and Malaria in Early Stages

Both diseases begin with fever, weakness, and headaches. However, malaria usually responds to treatment within a few days, while Lassa fever does not improve with antimalarial drugs. When fever lingers for more than four days despite treatment, Nigerians should get tested for Lassa fever.

Cost of Lassa Fever Testing in Nigeria

Testing is usually done in specialized laboratories approved by the Nigeria Centre for Disease Control (NCDC). The cost varies but is often subsidized or free in government facilities during outbreaks. Private labs may charge between ₦10,000 – ₦25,000.