Health & Wellness in the Context of Infectious Diseases
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Questions and Answers

What is a zoonosis?

A disease transmissible from animals to human beings

What factors influence the risk of zoonotic disease transmission?

Health of the animal, duration of contact, contact with higher risk materials, use of protective measures, and health status of the human

What are the different contexts in which humans are exposed to animals?

Companion animals, occupational exposure, food animals, wild animals, endemic animals or pests, and captive animals

What are some examples of occupational exposure to animals?

<p>Vets, breeders, pet shop staff, kennel staff, groomers, farm laborers, animal transporters, auction encounters, slaughterhouse workers, butchers, chefs, and waste disposers</p> Signup and view all the answers

What are some examples of higher risk materials that can contribute to zoonotic disease transmission?

<p>Blood, faeces, urine, saliva, and nasal discharge</p> Signup and view all the answers

What is the 'One Health' theme mentioned in the text?

<p>The interconnectedness of human, animal, and environmental health</p> Signup and view all the answers

What is the primary focus of the One Health approach?

<p>The primary focus is to address the interconnected health of humans, animals, and the environment.</p> Signup and view all the answers

Why did the Minister of Health prioritize human health over the mass vaccination of dogs for rabies?

<p>The Minister of Health stated that he was responsible for the people and not for the dogs.</p> Signup and view all the answers

How does the cost of mass vaccination of dogs and human treatment compare to human treatment alone in the context of rabies?

<p>The economic analysis showed that the cost of mass vaccination of dogs and human treatment (PEP) is less than human treatment alone, because vaccination of dogs can interrupt the transmission of rabies.</p> Signup and view all the answers

What are the 5 stages of pathogen adaptation in animals?

<p>The 5 stages of pathogen adaptation in animals are (1) Exclusively human agent, (2) Limited outbreak to-human transmission from animals or humans, (3) Primary infection only from animals, (4) The agent only adaptation in animals, and (5) none.</p> Signup and view all the answers

What is the zoonotic origin of HIV?

<p>HIV has a zoonotic origin, but it is now exclusively a human pathogen.</p> Signup and view all the answers

Define 'emerging infectious diseases'.

<p>Emerging infectious diseases refer to new agents appearing for the first time in human beings ('newly emerging') or known agents with increasing relevance, rising incidence, or geographically expanding ('re-emerging').</p> Signup and view all the answers

Provide examples of newly emerging viruses.

<p>Examples of newly emerging viruses include SARS-CoV-2, new influenzaviruses, Hendra and Nipah viruses, and HIV.</p> Signup and view all the answers

What are examples of 'old' agents with increasing relevance through medical advances?

<p>Examples of 'old' agents with increasing relevance through medical advances include cytomegalovirus, hepatitis C virus, and previously controlled vector-borne infections such as dengueviruses and yellow fever virus.</p> Signup and view all the answers

What are examples of newly recognized (but not new) agents of emerging infectious diseases?

<p>Examples of newly recognized (but not new) agents of emerging infectious diseases include hepatitis E virus and Kaposi's sarcoma-associated herpesvirus.</p> Signup and view all the answers

What is the significance of understanding the emergence of infectious agents?

<p>Understanding the emergence of infectious agents is crucial for effective surveillance, prevention, and control of infectious diseases.</p> Signup and view all the answers

What is the difference between microbiological and macrobiological hazards in the context of occupational health?

<p>Microbiological hazards are unique in that they pose an additional risk of spread to other employees and social contacts, while macrobiological hazards encompass all other living creatures associated with work activities.</p> Signup and view all the answers

Why are microbiological hazards considered unique in the context of occupational health?

<p>Microbiological hazards pose an additional risk of spread to other employees and social contacts, unlike other hazards.</p> Signup and view all the answers

What is the significance of the absence of Occupational Exposure Limits for biological hazards?

<p>The absence of Occupational Exposure Limits for biological hazards indicates a challenge in establishing safe exposure limits for these hazards at the workplace.</p> Signup and view all the answers

What is the scope of microbiological hazards in the workplace?

<p>Microbiological hazards encompass the whole spectrum of microbes including bacteria, viruses, protozoa, parasites, fungi, and algae.</p> Signup and view all the answers

How do microbiological hazards differ from other hazards in terms of potential impact on workers?

<p>Microbiological hazards pose the unique risk of spread to other employees and social contacts, beyond the impact on the individual worker.</p> Signup and view all the answers

What is included in the category of macrobiological hazards in the context of occupational health?

<p>Macrobiological hazards encompass all other living creatures associated with work activities, such as insects, reptiles, land &amp; water-based animals, harmful/toxic plants, etc.</p> Signup and view all the answers

What are the different types of precautions/control measures mentioned in the text?

<p>Standard, Airborne, Contact, Droplet</p> Signup and view all the answers

What does the term 'standard precautions' refer to?

<p>Hand washing, Gloves, Mask, eye protection, face shield, Protective clothing</p> Signup and view all the answers

What is the significance of the Regulations for Hazardous Biological Agents?

<p>Classifying HBAs (1-4) and linking appropriate containment measures with different HBA groupings</p> Signup and view all the answers

What are some examples of workplaces with typical exposure to macrobiological hazards?

<p>Veterinary practice, Nature conservation, Fisheries, Animal control, Game farming, Beekeeping</p> Signup and view all the answers

Provide an example of a containment measure for Group IV hazardous biological agents.

<p>Input air and extract air need to be filtered via High Efficiency Particulate Air (HEPA) filters</p> Signup and view all the answers

What are some examples of unexpected workplace exposures mentioned in the text?

<p>Occupational asthma caused by fish proteins, Allergic contact dermatitis to tomatoes, Legionella in cooling equipment, Travel-related illness (e.g., COVID, Malaria)</p> Signup and view all the answers

What is the definition of 'Standard Precautions' according to the text?

<p>Synthesis of Universal Precautions (UP) and Body Substances Isolation (BSI) and applies to all persons coming into contact with potentially infected persons, animals, or animal products and potentially contaminated blood and other fluids in the workplace</p> Signup and view all the answers

What are the examples of infections with specific detail on required precautions given in the text?

<p>Viral hemorrhagic fever (e.g., Measles - airborne precautions - duration of illness, HI virus - standard precautions)</p> Signup and view all the answers

What are the examples of workplaces with typical exposure to microbiohazardous agents?

<p>Health care (human and animal), postmortem units, clinical, veterinary and diagnostic laboratories, sewage treatment plants</p> Signup and view all the answers

What are the examples of macrobiological hazards mentioned in the text?

<p>Anopheles mosquito and malaria parasite, Rabid dog and rabies virus, Birds (droppings) and histoplasmosis</p> Signup and view all the answers

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