Important Information About Lassa Fever

Important Information About Lassa Fever

March 6, 2018 Uncategorized 0

Lassa fever is an acute and often fatal viral disease, with fever, occurring mainly in West Africa. It is usually acquired from infected rats. The illness was discovered in 1969 when two missionary nurses died in Nigeria. The virus is named after the town in Nigeria where the first cases occurred. Lassa fever occurs more often in the dry season, rather than in the rainy season.

While most humans are infected either from contact with an infected rat or inhalation of air contaminated with rat excretions, like other hemorrhagic fevers, Lassa fever can be transmitted directly from one human to another. It can be contracted through direct contact with infected human blood excretions and secretions, including through sexual contact. No evidence of airborne transmission person-to-person is seen. Transmission through breast milk has also been observed.

Causes of Lassa fever

The main cause of Lassa virus is a rodent known as the Multimammate Rat of the genus Mastomys but it is not sure that which species of Mastomys are associated with Lassa fever.

* Avoid direct contact with rats
* If rat eat your grain or other food the virus could transfer to the food.
* It may also spread through person-to-person contact when a person comes into contact with virus in the blood, tissue, secretions, or excretions of an individual infected with the Lassa virus.

Symptoms/Signs of Lassa fever

· Abdominal Pain
· Back Pain
· Chest Pain
· Conjunctivitis
· Cough
· Diarrhea
· Facial Swelling
· Fever
· Mucosal Bleeding
· Proteinuria
· Sore Throat
· Vomiting

How to Prevent Lassa fever

Avoid contact between rats and human beings

Isolating infected patients from contact with unprotected persons until the disease has run its course
Block all rat hideouts

Cook all foods thoroughly

Cover all foods and water properly.

If you suspect that rat has eaten any food, discard it

Keep your house and Environment clean

Store foodstuffs in rodent proof containers

Transmission of the Lassa virus from rodent to humans can be prevented by avoiding contact with Mastomys rodents(The rat that causes Lassa fever).

Wearing protective clothing, such as Masks, gloves, gowns, and Glasses


And as soon as you suspect Lassa fever, or you have persistent fever not responding to the normal/common treatment for malaria and typhoid, report to the nearest Health facility.


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