Rabies (ជំងឺឆ្កែឆ្កួត) ជំងឺមួយ
នេះគឺកាចសាហាវណាស់
អាចឆក់យកអាយុជីវិតមនុស្ស
យើងបានយ៉ាងងាយក្នុងរយះ
ពេលដ៍ខ្លី។ តែជំងឺនេះ
យើងអាចការពារទុកជាមុនបាន
ដើម្បីជៀសវាង តំណាក់
កាលហួសពេល។ ពេលឆ្កែខាំ ឬ
សត្វដែលមានចង្កួមខាំ ជំងឺនេះ និង ឆ្លងតាមទឹក
មាត់ របស់សត្វនោះ មកតាមកន្លែងរបួស រួចមេរោគ Rabies នេះ និង
បន្តធ្វើដំណើរតាម ប្រពន័្ឋ សរសៃ ឆ្អឹងខ្នង ឡើងទៅកាន់ ខួរក្បាល
របស់អ្នកជំងឺ....ធ្វើយ៉ាងណា ត្រូវប្រញ៉ាប់ ចាក់ថ្នាំការពារ មុនពេល
វាឈានទៅដល់ ខួរក្បាល.....មេរោគ Rabies ត្រូវការ រយះពេល ៥
ទៅ ១០ ថ្ងៃ ដើម្បីឆក់យកជីវិតអ្នកជំងឺ។
Deadly Animals Among Us
Rabies
- Viral disease - cause acute encephalitis (inflammation of the brain) in warm-blooded animals.
- Zoonotic (animals to humans).
- Bite from an infected animal
- For a human, rabies is almost invariably fatal if post-exposure prophylaxis is not administered prior to the onset of severe symptoms.
- Virus infect the CNS, cause disease in the brain & death.
- Causative Organism - Lyssavirus genus(Family Rhabdoviridae)
- Virus replicated in muscle cells near site of bite for most of incubation time. -Incubation time 30-90days.
- Then ascends along motor and sensory axons at rate of 12-100 mm per day and has predilection for brainstem and medulla
- Enters salivary glands after replication in CNS.
Animal Behavior
- Classic Picture of Rabid, mangy dog foaming at the mouth..not often seen, signs frequently more subtle.
- Animals - display aggressive behavior, ataxia, irritability, anorexia, lethargy/excessive salivation.
- Cats are more likely to be aggressive than dogs
- Animals exhibit change in instinctive behavior: nocturnal animal walking around in daylight (example. Raccoons)
- Unprovoked bites
Transmission
- Almost all transmission is by bite
- 50 times greater risk than a scratch
- One human case may have been acquired in a laboratory transmitted by aerosol
- In wild animals: Rabies can be transmitted transplacentally
- Transplants in human-possible
- Human-to-human: Never has been confirmed
- Rabies virus never isolated from blood
Encephalitic Form
- Hydrophobia: Patient can't swallow because violent jerky contraction of diaphragm and accessory muscles of inspiration when pt attempts to swallow liquids. -Patients will be terrified during this reaction and may even experience this at the sight of water or if water touches their face.
- Aerophobia: an extreme fear of air in motion can be elicited from some patients. This can also cause violent muscles spasms in the neck and pharynx.
- Hallucination, seizures, ataxia, focal weakness and arrhythmias can occur.
Rabies Vaccine
PRINCIPLE:
Potency of rabies vaccine is determined by comparing a Lethal intra-cerebral dose of a rabies virus with the dose of the standard preparation of rabies vaccines necessary to give for protection.
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