Zoonotic Diseases

Resumen

Some diseases do not stay inside the species they start in. A sick goat can pass its illness to the farmer who milks it; a dog with rabies can pass its infection to the child it bites; a cow with tuberculosis can pass the bacteria to the family that drinks its unboiled milk. Diseases that cross this way, from animal to human, are called zoonotic diseases, and they turn animal health from a farm concern into a public health one.

In this lesson you will learn what makes a disease zoonotic, meet the zoonoses that matter most on Nigerian farms, trace the specific routes by which each one reaches a human host, and learn the everyday precautions that close those routes. You will also see why this topic reaches far beyond the farm gate, to abattoir workers, veterinarians and the general public who never touch a live animal at all.

Objetivos

  1. Define zoonotic diseases
  2. Give examples of zoonotic diseases common in Nigeria
  3. Explain how zoonotic diseases are transmitted from animals to man
  4. State the precautions taken to prevent zoonotic disease transmission
  5. Explain the public health importance of zoonotic diseases

Nota de la lección

A butcher in Kano skins a cow that died overnight, undiagnosed, with a small cut on his hand. Three days later he is gravely ill: the cow had died of anthrax, and the bacteria entered through the cut. Understanding zoonotic diseases protects every farmer, trader and household that keeps livestock.

Evaluación de la lección

Felicitaciones por completar la lección del Zoonotic Diseases. Ahora que has explorado el conceptos e ideas clave, es hora de poner a prueba tus conocimientos. Esta sección ofrece una variedad de prácticas Preguntas diseñadas para reforzar su comprensión y ayudarle a evaluar su comprensión del material.

Te encontrarás con una variedad de tipos de preguntas, incluyendo preguntas de opción múltiple, preguntas de respuesta corta y preguntas de ensayo. Cada pregunta está cuidadosamente diseñada para evaluar diferentes aspectos de tu conocimiento y habilidades de pensamiento crítico.

Utiliza esta sección de evaluación como una oportunidad para reforzar tu comprensión del tema e identificar cualquier área en la que puedas necesitar un estudio adicional. No te desanimes por los desafíos que encuentres; en su lugar, míralos como oportunidades para el crecimiento y la mejora.

  1. A zoonotic disease is best defined as a disease that is: A. Found only in wild animals B. Naturally transmissible from animals to humans C. Passed from one human to another D. Caused only by poor nutrition Answer: B
  2. Which of the following is caused by a virus? A. Anthrax B. Brucellosis C. Rabies D. Ringworm Answer: C
  3. Bovine tuberculosis is most commonly transmitted to humans through: A. Tick bites B. Unpasteurised milk and infected meat C. Airborne dust in poultry houses D. Contact with dog saliva Answer: B
  4. Which precaution chiefly protects a person handling a carcass from direct-contact zoonoses such as anthrax? A. Boiling drinking water B. Wearing protective clothing and gloves C. Vaccinating poultry D. Improving housing ventilation Answer: B
  5. Which of these is generally regarded as a milder, common zoonosis spread by skin contact with an infected animal? A. Rabies B. Anthrax C. Avian influenza D. Ringworm Answer: D

Preguntas Anteriores

¿Te preguntas cómo son las preguntas anteriores sobre este tema? Aquí tienes una serie de preguntas sobre Zoonotic Diseases de años anteriores.

Pregunta 1 Informe

(a) Discuss anthrax disease under the following headings:

  • causative organisms
  • two modes of transmission;

 

(b) Draw and label the reproductive tract of a hen.  [6 marks]