What are zoonotic disease agents?

What are zoonotic disease agents?

A zoonosis is an infectious disease that has jumped from a non-human animal to humans. Zoonotic pathogens may be bacterial, viral or parasitic, or may involve unconventional agents and can spread to humans through direct contact or through food, water or the environment.

What are zoonoses examples?

Zoonotic diseases are illnesses that can spread between animals and people….The zoonotic diseases of most concern in the U.S. are:

  • Zoonotic influenza.
  • Salmonellosis.
  • West Nile virus.
  • Plague.
  • Emerging coronaviruses (e.g., severe acute respiratory syndrome and Middle East respiratory syndrome)
  • Rabies.
  • Brucellosis.
  • Lyme disease.

What are the four types of zoonoses?

Common zoonotic illnesses include:

  • Rabies. Rabies is a disease that affects the nervous system of mammals.
  • Lyme disease and Rocky Mountain spotted fever. Lyme disease is transmitted through tick bites.
  • Dengue, malaria, and chikungunya.
  • Salmonella infection.
  • E.
  • Psittacosis.
  • Other types.

How is zoonosis spread?

In direct zoonosis the disease is directly transmitted from animals to humans through media such as air (influenza) or through bites and saliva (rabies). In contrast, transmission can also occur via an intermediate species (referred to as a vector), which carry the disease pathogen without getting sick.

How are zoonotic diseases transmitted?

In many cases, zoonotic disease, whether bacterial, viral or fungal in nature, spreads to people through contact with animals carrying the disease. It can happen when handling, petting or even getting bitten or scratched by an animal.

Is Zika a zoonotic disease?

Examples of zoonotic diseases or zoonoses (diseases transmitted between animals and humans) include Zika virus, Ebola virus, avian flu, SARS, MERS, West Nile virus, Lyme disease and yellow fever.

What 5 factors have a major impact on zoonotic transmission of infectious disease?


  • Global Population Growth. The second half of the 20th century was a time of unprecedented population growth.
  • Population Mobility.
  • Urbanization.
  • Human Behavior and Cultural Factors.
  • Natural and Built Environments.
  • Food Preferences.
  • Companion Animals.

What do you mean by zoonotic disease write about the causative agent spread and their control measures?

A zoonotic disease is a disease or infection that can be transmitted naturally from vertebrate animals to humans or from humans to vertebrate animals. More than 60% of human pathogens are zoonotic in origin. This includes a wide variety of bacteria, viruses, fungi, protozoa, parasites, and other pathogens.

What zoonosis means?

Disease Transmitted from Animals to Humans. A zoonosis (zoonotic disease or zoonoses -plural) is an infectious disease that is transmitted between species from animals to humans (or from humans to animals).

Is chikungunya a zoonotic disease?

Like all arthropod-borne viruses (arboviruses), CHIKV is zoonotic, and evolved in enzootic transmission cycles in sub-Saharan Africa involving forest-dwelling mosquito vectors and nonhuman primate (NHP) amplification hosts.

What causes the spread of zoonotic diseases?

Social changes resulting in altered land and water-use patterns, intensified agricultural practices, deforestation and reforestation, and human and domestic animal encroachment on wildlife habitats also affect the movement of pathogens.

How do zoonotic diseases spread?

What is viral zoonosis?

Zoonoses are diseases transmissible from vertebrate animals, other than humans, to people. Mammals, birds, reptiles, and probably amphibians are reservoirs or amplifying hosts for viral zoonoses. Frequently, these viruses cause little or no overt disease in their nonhuman vertebrate hosts.

What is fungal zoonosis?

Abstract. Zoonotic fungi can be naturally transmitted between animals and humans, and in some cases cause significant public health problems. A number of mycoses associated with zoonotic transmission are among the group of the most common fungal diseases, worldwide.