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Medical Insider – Dr. Ria P. Maslog

MEDICAL INSIDER
DR. RIA PINLAC MASLOG
FOR SEPTEMBER 10

Rabies
Rabies is a highly fatal viral encephalomyelitis which is transmitted to man by the bite of
a rabid animal.
The rabies virus has a strong affinity to the cells of the central nervous system.
The virus is inactivated by sunlight, ultraviolet light, ether, formalin, mercury bichloride
and nitric acid and is resistant to phenol, merthiolate, sulfadiazine and common
antibacterial agents.
The rabies virus is killed by a temperature of 56 degrees Celsius in one hour and 60
degrees C in five minutes.
The transmission of the infection is through bites, from dog to dog and from dog to man
and domestic animals.
Once bitten by a rabid animal, the rabies virus proceeds to the central nervous system.
And it is in the period between the viral inoculation and nerve invasion where the
prophylactic vaccine treatment is effective.
After the virus infects the Central nervous system, it will spread through the peripheral
nerves to the salivary glands and also to the lungs, adrenals, kidneys, bladder and
testicles.

Clinically, the rabies infection will have an incubation period in man: from 4 to 8 weeks
but can be also from ten days to 1 year. It tends to be of shorter incubation if the bites
are severe and more on the head or neck.
The manifestations are divided into three phases:
A. Prodromal Phase

  1. Control and eradication program for urban rabies
  2. Control measures for wildlife rabies
  3. Internal regulations regarding transfer of animals and
  4. Pre and post exposure vaccination schedules for man
  5. Immunization of domestic dogs and cats
  6. Elimination of street dogs
    Source:
    Textbook of Pediatrics and Child Health

By: Dr Fe Del Mundo, Dr Felix Estrada, Dr Perla Santos Ocampo

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