Wiki Sumber Informasi iSIKHNAS

Possible ways to enter a host include:

• Orally - by being eaten (many parasites/worms survive on grass or feed)
• Respiratory - through breathing the agent into the nose, throat and airways, (avian influenza virus, bacteria causing pneumonia).
• Mucous membranes - through contact with the eye, mouth, or nose. (Pinkeye)
• Skin - through intact skin (ringworm) or through damaged skin (human anthrax) or through biting insects (bluetongue) or through animal bites (rabies)
• Coitus - transmitted when animals breed (vibriosis in cattle)
• Iatrogenic - through some management or veterinary procedure (surgery, vaccination, dehorning, castration, injections) Bluetongue in livestock and HIV/AIDS or Hepatitis in humans