A simple method to control Brugia timori by diethylcarbamazine administration

Area of Science:

• Tropical Medicine
• Parasitology
• Public Health

Background:

• Brugia timori filariasis is a significant public health concern in endemic areas.
• Effective mass drug administration strategies are crucial for controlling lymphatic filariasis.

Purpose of the Study:

• To evaluate the efficacy of mass diethylcarbamazine treatment followed by selective re-treatment for Brugia timori filariasis.
• To assess the practicality of re-treatment selection criteria in rural settings.

Main Methods:

• Mass treatment with diethylcarbamazine (50 mg/kg body-weight).
• Selective re-treatment based on simple, practical criteria one year later.
• Monitoring microfilaria rates using finger prick and Nuclepore filtration.

Main Results:

• Microfilaria rates decreased from 24% (finger prick) and 30% (Nuclepore filtration) to 0% and 2.5%, respectively.
• Favorable impact on disease rates observed.
• 88% of treated individuals experienced reactions, slightly exceeding the overall filarial infection rate of 71%.

Conclusions:

• Mass diethylcarbamazine treatment followed by selective re-treatment is highly effective in reducing Brugia timori microfilaraemia.
• The proposed re-treatment criteria are suitable for implementation in resource-limited rural areas.
• Understanding and managing side reactions is important for successful filariasis control programs.