Which is biological agent of disease?

Biological agents include bacteria, viruses, fungi, other microorganisms and their associated toxins. They have the ability to adversely affect human health in a variety of ways, ranging from relatively mild, allergic reactions to serious medical conditions—even death.

Which is not biological agent?

So, the correct answer is option C- ‘Pollen’.

What are the four biological agents?

Biological agents are bacteria, viruses, parasites and fungi which can cause harm to human health, usually due to infection (some are toxic or can cause an allergy).

What are biological diseases?

Biological Disorders: disturbances of the normal state of the body or mind. Disorders of structure or function in an animal or plant. ( Oxford) Disorders may be caused by genetic factors, disease, or “trauma.” ( NCI3)

What are the 5 biological agents?

They include bacteria, viruses, fungi (including yeasts and moulds) and internal human parasites (endoparasites). The majority of these agents are harmless however some may have potential to cause ill health.

How many types of biological agents are there?

There are more than 1200 different kinds of biological agents, some of which can be used as biological weapons.

Is blood a biological agent?

Potentially Hazardous Biological Agents Rules for use of microorganisms (including bacteria, viruses, viroids, prions, rickettsia, fungi and parasites), recombinant DNA technologies or human or animal fresh/frozen tissues, blood, or body fluids.

What are the 6 category A biological agents?

  • Anthrax (Bacillus anthracis)
  • Botulism (Clostridium botulinum toxin)
  • Plague (Yersinia pestis)
  • Smallpox (variola major)
  • Tularemia (Francisella tularensis)
  • Viral hemorrhagic fevers (filoviruses [e.g., Ebola, Marburg] and arenaviruses [e.g., Lassa, Machupo])

What is the meaning of biological agents?

Listen to pronunciation. (BY-oh-LAH-jih-kul AY-jent) A substance that is made from a living organism or its products and is used in the prevention, diagnosis, or treatment of cancer and other diseases. Biological agents include antibodies, interleukins, and vaccines.

Is Ebola a biological agent?

on these characteristics this study concludes that the Ebola virus is capable of being a successful bio-agent, analogous to smallpox and anthrax. In certain factors such as infectiousness and prophylaxis, Ebola is, in fact, a more suitable bioterror agent than smallpox or anthrax.

What are the 4 hazard groups for biological agents give some examples?

Pathogens, Toxins, Allergens and Carcinogens Pathogens are microorganisms such as bacteria, viruses, fungi and parasites which can colonise humans and cause infection and harm to health.

Which of the following is considered a biological exposure?

Potential exposures include needle sticks, animal bites, aerosol exposures, and other incidents potentially resulting in disease from a biological agent.

What is called disease?

disease, any harmful deviation from the normal structural or functional state of an organism, generally associated with certain signs and symptoms and differing in nature from physical injury. A diseased organism commonly exhibits signs or symptoms indicative of its abnormal state.

What three types of disease can biological agents cause?

Biological agents include viruses, bacteria, fungi and parasites, and they can cause health problems either directly or through exposure to related allergens or toxins. Work-related exposure to biological agents may be associated with several health problems, including infectious diseases, cancer and allergies.

What is disease and its causes?

Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They’re normally harmless or even helpful. But under certain conditions, some organisms may cause disease. Some infectious diseases can be passed from person to person.

What is physical agent?

Physical agents are sources of energy that may cause injury or disease. Examples include noise, vibration, radiation, and extremes in temperature.

Is smallpox a biological agent?

No one has gotten smallpox naturally since 1977. However, it is possible that variola virus (the virus that causes smallpox) could be used in a biological attack (an intentional release of viruses, bacteria, or other germs that can sicken or kill people, livestock, or crops).

Are toxins a biological agent?

The CDC categorizes natural toxins as biological agents even though there is some overlap with man-made chemical agents (toxicants). However, natural toxins are usually more toxic than chemical agents, have a longer latency period, and they are associated with a lower risk of environmental contamination [5, 6].

What are the three types of biological agents that can be weaponized?

  • brucellosis.
  • Q fever.
  • ricin toxin.
  • cholera.

Is chlorine a biological agent?

It’s really very important to have clean water to avoid water borne diseases. But chlorine is a chemical agent that effects the eyes and the ability to breath. When mixed with water it produces hydrochloride acid. It’s not a very efficient chemical weapon because we can sense it when it’s not very toxic yet.

What is an example of a biological toxin?

Introduction. Biological toxins are poisonous substances produced by certain microorganisms, animals, and plants. Examples of toxins of biological origin include Diphtheria Toxin, Tetrodotoxin, Pertussis Toxin, Botulinium Toxin, Snake Venom Toxins, Conotoxin and Ricin.

What are the types of biological warfare agents?

  • Anthrax (Bacillus anthracis)
  • Botulism (Clostridium botulinum toxin)
  • Plague (Yersinia pestis)
  • Smallpox (variola major)
  • Tularemia (Francisella tularensis)
  • Viral hemorrhagic fevers, including. Filoviruses (Ebola, Marburg) Arenaviruses (Lassa, Machupo)

Is anthrax a biological agent?

Anthrax as a weapon Biological agents are germs that can sicken or kill people, livestock, or crops. Anthrax is one of the most likely agents to be used because: Anthrax spores are easily found in nature, can be produced in a lab, and can last for a long time in the environment.

Which biological agent inspires the most fear?

There are many ways to implement a biological attack, but these are some of the most feared agents, from least to most threatening: Ebola virus — The virus takes about a week to kill the victim, and it spreads through direct contact.

What is an example of a biological weapon?

These include: Bacteria—single-cell organisms that cause diseases such as anthrax, brucellosis, tularemia, and plague.

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