Diseases Transmitted By Rodents

Health Hygiene & Sanitation

Lesson 19 : Rodent Control

Diseases Transmitted By Rodents

  • Bacterial
    • Plague, tularemia, salmonellosis
  • Viral
    • Lassa Fever, encephalitis
  • Rickettsial
    • Scrub typhus, murine typhus, rickettsial pox
  • Parasitic
    • Amebiasis, Chaga’s disease
  • Others
    • Rat bite fever, Leptospirosis, ring worm etc

Anti-Rodent Measures

  • Sanitation measures
  • Trapping
  • Rodenticides
  • Fumigation
  • Chemosterilants

Anti-Rodent Measures – Sanitation

  • Sound environmental sanitation is the most effective weapon in deratization campaign.
  • Rats require three things : food, water and shelter. If these are denied, rats will naturally decrease in density.
  • Sanitation is therefore essential to the permanent control of rats and mice, and all measures should be regarded as supplementary to sanitation.

Anti-Rodent Measures – Trapping

  • Trapping of rats is a simple operation
  • But it causes temporary reduction in the number of commensal rodents.
  • It is recommended that the number of traps laid should be at least 5 per cent of the human population.
  • The 'wonder trap' developed by the Haffkine Institute, Mumbai is credited to trap as many as 25 rats at a time.
  • The traps are usually baited with indigenous foods of the locality.
  • The captured rats must be destroyed which may be done by drowning them in water.
  • Rats by nature are suspicious animals, and will soon become "trap-wise" and avoid baited traps.
  • Trapping therefore should be considered supplementary to other methods of rodent control.
Last modified: Tuesday, 24 April 2012, 8:00 AM