Title
Guidelines on Management of Animal Bite Patients
Law
Doh Administrative Order No. 164
Decision Date
Oct 16, 2002
The Department of Health establishes revised guidelines for the management of animal bite patients, emphasizing the prevention of rabies through standardized treatment protocols, vaccination, and collaboration among health agencies to achieve a rabies-free Philippines by 2020.

Law Summary

Coverage and Uniformity of Policy

  • Guidelines apply to all government doctors and private practitioners nationwide.
  • Aims to standardize animal bite patient management across all healthcare levels.

General Policies for Implementation

  • Policy subject to continuous review by technical experts.
  • Requires advocacy, healthcare worker training, system establishment, and secured funding.
  • Successful implementation depends on collaboration among governmental, non-governmental, and private sectors.

Program Policies - Management of Potential Exposure

  • Exposure categorized into three risk levels; each has a corresponding recommended management plan.

Immunization - Active Immunization

  • Vaccines stimulate antibody and T-cell production, effective within 7-10 days post-vaccination, lasting a year or more.
  • Types of vaccines in the Philippines include Purified Free Cell Rabies Vaccine (PVRV), Purified Duck Embryo Vaccine (PDEV), and Purified Chick Embryo Cell Vaccine (PCECV).
  • Vaccines are safe, highly immunogenic, and administered intramuscularly or intradermally.

Immunization - Passive Immunization

  • Rabies Immunoglobulin (RIG) provides immediate protection for Category III exposures alongside vaccine.
  • Only WHO-evaluated and BFAD-approved vaccines and RIG are authorized.
  • RIG types: Human Rabies Immunoglobulin (HRIG) at 20 IU/kg; Equine Rabies Immunoglobulin (ERIG) at 40 IU/kg.
  • Dosage calculations provided based on patient weight and RIG concentration.
  • RIG should be infiltrated around wounds; excess is administered intramuscularly away from vaccine site.
  • First RIG dose concurrent with first vaccine dose; can be delayed up to 7 days post first vaccine dose.
  • ERIG requires skin test before administration; preparedness for hypersensitivity reactions is mandatory.

Treatment - Post-Exposure Local Wound Care

  • Immediate and thorough washing and flushing of wounds with soap and water for at least 10 minutes.
  • Application of alcohol, tincture of iodine, or antiseptic recommended.
  • Avoid suturing if possible; if necessary, infiltrate RIG before suturing.
  • No ointments, creams, or occlusive dressings should be applied.
  • Anti-tetanus and antimicrobial treatments are given if indicated.

Treatment Regimens

  • 2-Site Intradermal Schedule (2-2-2-0-1-1): Injections given on Days 0, 3, 7, 30, and 90; specific dosage and site instructions.
  • 2-1-1 Intramuscular Schedule: Two doses on Day 0, one dose on Days 7 and 21; suitable when RIG unavailable.
  • Standard Intramuscular Schedule: Doses on Days 0, 3, 7, 14, and 28; adherence important to prevent failure.
  • 8-Site Intradermal Schedule: Eight doses on Day 0, four on Day 7, one each on Days 30 and 90; alternative when RIG unavailable.
  • Strict adherence to treatment schedules emphasized; protocols for missed doses detailed.

Special Conditions in Treatment

  • Pregnancy and infancy not contraindicated for purified cell culture vaccines.
  • Certain drugs (chloroquine, anti-epileptics, steroids) and heavy alcohol consumption should be avoided during immunization.
  • Immunocompromised patients receive standard intramuscular regimen plus RIG.
  • Late presenters treated as recent exposures unless the animal remains healthy for 14 days post-bite.
  • Rodent, rabbit, and non-dog/cat domestic animal bites do not generally require post-exposure treatment unless rabid.
  • Monkey and wild animal bites treated similarly to dog and cat bites.

Post-Exposure Treatment for Previously Immunized Patients

  • Local wound care mandatory.
  • Booster doses vary based on time since last immunization; no RIG needed.

Pre-Exposure Prophylaxis

  • Recommended for high-risk groups such as veterinarians and laboratory personnel.
  • Schedule includes initial doses on Days 0, 7, and 21 or 28, with periodic boosters every 2-3 years depending on exposure risk.

Laboratory Handling of Suspected Rabid Animals

  • Proper packaging in double leak-proof plastic bags and ice containers for transport within 12 hours.
  • No chemical preservatives used.
  • Animals should be taken to designated rabies diagnostic labs.

Management of the Biting Animal

  • Veterinary consultation advised.
  • Signs of rabies in animals detailed including behavioral changes, paralysis, restlessness, and sudden death.

Dispensing of Anti-Rabies Immunizing Agents

  • Post-exposure treatment provided at Animal Bite Treatment Centers, with free vaccines and RIG for indicated patients.
  • Assessment and documentation required prior to dispensing.
  • Initial doses given free under 2-1-1 schedule; full intradermal course free if using ID regimen.
  • Rabies immunoglobulin given if available, prioritizing HRIG.
  • Patient education emphasized regarding treatment adherence and responsible pet ownership.

Provision and Prioritization of Free Vaccines

  • Government health agencies responsible for free vaccine dispensing if available.
  • Priority groups include confirmed rabies exposure, Category III exposures, exposures to human rabies patients, and Category II exposures.
  • Veterinary and laboratory workers provided pre-exposure prophylaxis free.

Implementation and Vaccine Distribution Roles

  • Central Office procures vaccines and allocates quarterly to regional offices.
  • Regional Centers distribute to Provincial and City Health Offices.
  • Local Government Units manage Animal Bite Treatment Centers for vaccine administration.

Repealing Clause and Effectivity

  • Rescinds prior inconsistent administrative orders.
  • The order is effective immediately upon promulgation.

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