Microfilaria Antibody

Microfilaria Antibody

What it is

The Microfilaria Antibody test detects antibodies produced by the immune system against filarial parasites such as Wuchereria bancrofti or Brugia malayi. These worms are responsible for lymphatic filariasis, also known as filaria. Unlike a smear that directly looks for parasites, this test identifies immune response markers, making it useful when parasites are not easily visible in the blood.

Uses

This test is primarily used to aid in the diagnosis of filarial infections when microfilariae are absent in routine blood smears. It is helpful in detecting past or ongoing exposure, supporting epidemiological surveys in endemic regions, and monitoring individuals with suspected lymphatic filariasis.

Symptoms That May Lead to the Test

A doctor may recommend this test if you show symptoms such as recurrent fever, lymph node swelling, persistent fatigue, unexplained swelling of legs, arms, or genitals (lymphedema, elephantiasis), or have a history of living in or traveling to areas where filariasis is common.

Abnormal Results

Positive Antibody Result: Indicates exposure or infection with filarial parasites. It may reflect a current infection or a past infection, as antibodies can remain in the body long after the infection has resolved.

Negative Antibody Result: Suggests no detectable immune response to filarial parasites. However, very early or localized infections may still yield false-negative results.

Risks

This is a standard blood test with minimal risks such as slight pain, bruising, or dizziness at the puncture site. No serious risks are associated with the procedure.