1
Q
What type of diseases are included in the tables of the veterinary manual?
A
Zoonotic bacterial, viral, prion, fungal, and parasitic diseases
Many proven zoonoses are omitted, including rare diseases in humans and those primarily maintained in humans.
2
Q
What is a key characteristic of many pathogens concerning immunocompromised patients?
A
They can cause more severe disease or unusual signs
Asymptomatic infections can also be assumed to occur in most cases.
3
Q
What influences the mortality rate of infections in healthy humans?
A
Availability of medical care
The mortality rate is generally lower when advanced medical support is available.
4
Q
How can the risk of death from bacterial diseases with high mortality rates be reduced?
A
Prompt antimicrobial treatment
This can nearly eliminate the risk of death.
5
Q
What does a geographic distribution described as ‘worldwide’ indicate?
A
Organisms are widespread and found on all major continents
They may be absent from some areas, such as polar regions.
6
Q
What should be consulted for a more complete description of zoonotic diseases?
A
Current medical texts or review articles
The tables provide a general clinical picture.
7
Q
True or False: Asymptomatic infections are rare in zoonotic diseases.
A
False
Asymptomatic infections can often be assumed to occur.
8
Q
Fill in the blank: The mortality rate is often influenced by the availability of _______.
A
medical care
Advanced medical support can lower mortality rates.
9
Q
What types of diseases are omitted from the tables in the veterinary manual?
A
Some rare diseases in humans and organisms primarily maintained in humans
This includes diseases due to fish and reptile toxins.
10
Q
What is the significance of the information on the geographic range of an organism?
A
It should be taken as a rough guide
The precise ranges of many pathogens have not been completely determined.
11
Q
What can happen whenever lesions become generalized in a patient?
A
There is a chance of death
This is especially true if vital organs are affected or secondary infections occur.
12
Q
What is One Health?
A
One Health is an approach that recognizes the interconnectedness of human, animal, and environmental health.
13
Q
What benefits do animals provide to people?
A
Animals provide food, fiber, livelihoods, travel, sport, companionship, and education.
14
Q
How do people commonly interact with animals?
A
People interact with animals at home, during travel, at animal exhibits, and while enjoying outdoor activities.
15
Q
What are zoonotic diseases?
A
Zoonotic diseases are illnesses caused by harmful germs that can spread from animals to people.
16
Q
What types of germs can cause zoonotic diseases?
A
Zoonotic diseases can be caused by viruses, bacteria, parasites, and fungi.
17
Q
How common are zoonotic diseases?
A
Zoonotic diseases are very common; over 6 out of every 10 known infectious diseases in people can be spread from animals.
18
Q
What is the CDC’s role regarding zoonotic diseases?
A
The CDC works 24/7 to protect people from zoonotic diseases in the United States and globally.
19
Q
How can germs spread from animals to people?
A
Germs can spread through direct contact, indirect contact, vector-borne transmission, and foodborne transmission.
20
Q
What is direct contact in the context of zoonotic diseases?
A
Direct contact involves coming into contact with the saliva, blood, urine, mucous, feces, or other body fluids of an infected animal.
21
Q
What is indirect contact?
A
Indirect contact involves coming into contact with areas where animals live or objects contaminated with germs.
22
Q
What is vector-borne transmission?
A
Vector-borne transmission occurs when a person is bitten by a tick, mosquito, or flea.
23
Q
What is foodborne transmission?
A
Foodborne transmission occurs when people eat or drink contaminated food or beverages.
24
Q
How many Americans get sick from contaminated food each year?
A
Each year, 1 in 6 Americans get sick from eating contaminated food.
25
What does 'waterborne' mean?
Drinking or coming in contact with water that has been contaminated with feces from an infected animal.
26
Who is at a higher risk of serious illness from zoonotic diseases?
Children younger than 5, adults older than 65, people with weakened immune systems, and pregnant women.
27
Can healthy people get sick from zoonotic diseases?
Yes, anyone can get sick from a zoonotic disease, including healthy people.
28
What can you do to protect yourself and your family from zoonotic diseases?
Keep hands clean by washing them right after being around animals, even if you didn't touch any animals.
29
What should you do if soap and water are not available?
Use an alcohol-based hand sanitizer that contains at least 60% alcohol.
30
Why is it important to wash hands with soap and water?
Because hand sanitizers do not get rid of all types of germs.
31
Where can people come in contact with animals?
At home and away from home, in places like petting zoos, fairs, schools, stores, and parks.
32
What is one of the most important steps to avoid getting sick?
Washing your hands right after being around animals.
33
What are zoonoses?
Diseases and infections that naturally transmit between vertebrate animals and humans
## Footnote
Zoonoses can be caused by bacteria, viruses, parasites, and fungi.
34
What pathogens can cause zoonotic diseases?
Bacteria, viruses, parasites, fungi
## Footnote
Examples include the rabies virus and bacterial salmonellosis.
35
Why are zoonoses important?
1. Historical and Current Impact
2. Economic Impact
3. Biodiversity Loss
## Footnote
Historical pandemics like the 1918 flu and COVID-19 were zoonotic in origin.
36
What is one historical example of a zoonotic pandemic?
The 1918 flu pandemic
## Footnote
COVID-19 is a more recent example of a zoonotic disease.
37
What economic impacts can zoonoses have?
Significant economic losses in agriculture, reduced livelihoods, strain on healthcare systems
## Footnote
Outbreaks can disrupt various sectors of the economy.
38
How do zoonoses spread?
1. Direct Contact
2. Indirect Contact
3. Vector-Borne
4. Foodborne
5. Waterborne
## Footnote
Each mechanism represents a different way zoonotic diseases can be transmitted.
39
What is direct contact transmission in zoonoses?
Handling animals, exposure to their bodily fluids, or getting bitten
## Footnote
This type of transmission involves physical interaction with infected animals.
40
What is indirect contact transmission in zoonoses?
Through airborne routes or by interacting with environments contaminated by infected animals
## Footnote
This type of transmission does not require direct contact with the animal.
41
What is vector-borne transmission in zoonoses?
Transmitted by insects like mosquitoes or ticks
## Footnote
Examples include malaria (mosquitoes) and Lyme disease (ticks).
42
What is foodborne transmission in zoonoses?
Consuming contaminated food products
## Footnote
This can include undercooked meat or contaminated fruits and vegetables.
43
What is waterborne transmission in zoonoses?
Drinking or coming into contact with contaminated water sources
## Footnote
Zoonotic diseases can be spread through water contaminated by infected animals.
44
What factors contribute to the emergence of zoonotic diseases?
Several factors include land use and urbanization, climate change, global travel and trade, and inadequate public health measures.
45
How does land use and urbanization influence zoonotic diseases?
Encroachment on wildlife habitats can increase interactions between humans, livestock, and wild animals.
46
What role does climate change play in zoonotic diseases?
Altered climates can expand the range of many disease vectors, like mosquitoes.
47
How does global travel and trade affect zoonotic diseases?
Increased movement of people and goods facilitates the spread of diseases across borders.
48
What are the consequences of inadequate public health measures?
Poor sanitation, lack of healthcare infrastructure, and inadequate disease surveillance can exacerbate outbreaks.
49
What are key strategies for the prevention and control of zoonoses?
Key strategies include surveillance and research, public awareness, vaccination, and safe practices.
50
What is the importance of surveillance and research in zoonotic disease prevention?
Monitoring and studying disease patterns in animals can offer early warning signs for potential human outbreaks.
51
Why is public awareness important in zoonotic disease prevention?
Educating communities about zoonotic risks is crucial, especially in regions with high interaction between humans and animals.
52
How can vaccination help in zoonotic disease prevention?
Vaccines can prevent certain zoonotic diseases in both humans and animals.
53
What are safe practices to prevent zoonotic diseases?
Safe practices include safe handling of animals, proper cooking of food, and regular hand hygiene.
54
What is the role of Purdue College of Veterinary Medicine in zoonotic diseases?
The Purdue College of Veterinary Medicine is dedicated to diagnosing, treating, and preventing zoonotic diseases.
55
What percentage of human infectious diseases are transmitted from animals to humans?
More than 70%
56
In which regions do zoonotic diseases strike hardest?
Less developed countries
57
What is the focus of research in the Allen School regarding zoonotic diseases?
Study a broad range of zoonotic diseases from the intracellular behavior of pathogens to the development of vaccines and diagnostic techniques in developing countries
58
What are zoonotic diseases?
Diseases transmitted from animals to humans
59
Name a method through which zoonotic diseases can be spread.
Through vectors, such as tick, mosquito, flea, and deer fly bites
60
Fill in the blank: Zoonotic diseases can be spread by eating or drinking animal products, such as milk, from _______.
[cattle, sheep, and goats]
61
What is another mode of transmission for zoonotic diseases?
Contact with an infected animal or where animals live
62
How can drinking water be a source of zoonotic diseases?
Drinking water infected with pathogens
63
What is Anaplasmosis?
A bacterial disease transmitted to humans by ticks.
64
What is Brucellosis?
An infectious disease that affects livestock and may be transmitted to humans.
65
What is Bubonic plague?
An infection spread to humans by infected fleas that travel on rodents.
66
What is Chagas disease?
An inflammatory, infectious disease caused by a parasite.
67
What are Coronaviruses?
Zoonotic respiratory and enteric viruses that include human pathogens SARS-CoV, SARS-CoV-2, and MERS-CoV.
68
What is H5N8 influenza?
A highly contagious disease of poultry that continues to spread across the globe in bird populations.
69
What is Lyme disease?
A common tick-borne illness transmitted by the bite of an infected black-legged tick.
70
What is Q fever?
A disease caused by the bacteria Coxiella burnetii that can be transmitted to humans by animals, most commonly sheep, goats, and cattle.
71
What is Salmonella?
A common bacterial disease that affects the intestinal tract.
72
What is Trachoma?
The leading cause of preventable blindness.
73
What is Tularemia?
A rare infectious disease that attacks the skin, eyes, lymph nodes, and lungs.
74
What is Zika?
A virus transmitted by mosquitoes that can cause pregnancy complications in humans.
75
What is COVID-19 caused by?
COVID-19 is caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2).
76
To which family does SARS-CoV-2 belong?
SARS-CoV-2 belongs to the Coronavirinae subfamily, family Coronaviridae.
77
What is the structure of SARS-CoV-2?
SARS-CoV-2 is spherical, displaying club-shaped projections, and is enveloped by a lipid bilayer.
78
What type of RNA does SARS-CoV-2 have?
SARS-CoV-2 has a positive-sense single-stranded RNA.
79
How many structural proteins does SARS-CoV-2 encode?
SARS-CoV-2 encodes four structural proteins: S (spike protein), E (envelope), M (membrane), and N (nucleocapsid).
80
What is the global impact of COVID-19 in terms of cases and deaths?
As of August 2020, COVID-19 has reached more than 19 million cases and approximately 728 thousand deaths in over 215 countries.
81
Where did the COVID-19 pandemic originate?
The pandemic originated in Wuhan, China.
82
What factors contributed to the spread of SARS-CoV-2?
Rapid economic growth, high demand for animal protein, and consumption of exotic animals in local food markets contributed to the spread.
83
What role do veterinarians play in zoonotic diseases?
Veterinarians are central in the prevention of new zoonoses that may impact human health.
84
What is the One Health concept?
The One Health concept recognizes the interactions between humans, animals, and the environment.
85
What percentage of emerging diseases have a zoonotic origin?
At least 75% of emerging diseases have a zoonotic origin.
86
Can you name some examples of zoonotic diseases?
Examples of zoonotic diseases include the Spanish flu, H1N1, MERS, and Ebola.
87
What percentage of emerging diseases have a zoonotic origin?
At least 75% of emerging diseases have a zoonotic origin.
88
What are some examples of zoonotic diseases?
Examples include the Spanish flu, H1N1, SARS, MERS, and Ebola.
89
What happens when a pathogen crosses the species barrier?
In most cases, the disease may not sustain or establish in the heterologous host.
90
What is a potential risk when a pathogen crosses species barriers?
It may become more pathogenic and virulent, with unpredictable consequences.
91
What is the role of veterinarians in the context of emerging zoonoses?
Veterinarians are responsible for identifying and revealing risks and epidemiological aspects involved in transmission.
92
Why should studies in regions with high human activity and wildlife contact be prioritized?
These hotspots are decisive in the emergence of new epidemics and pandemics.
93
Where are hotspots for emerging diseases commonly found?
Hotspots are found in low and middle-income countries in South America and Africa, as well as in vulnerable populations in developed countries.
94
What is the One Health concept?
It frames the veterinarian's role in public health, emphasizing the interconnectedness of human, animal, and environmental health.
95
What challenges do emerging and reemerging pathogens present?
They present challenges for public health systems worldwide, especially regarding animal interaction.
96
What is necessary for the prevention of pandemics according to public health agencies?
Investment in studies prioritizing the investigation of infectious agents in wild animals associated with hotspots.
97
What could the implementation of early identification of potential pathogens achieve?
It could block and reduce opportunities for pathogens to circulate freely.
98
What is the role of veterinarians in managing outbreaks?
Veterinarians have experience in managing outbreaks of diseases such as brucellosis, tuberculosis, anthrax, foot-and-mouth disease, and rabies.
99
What is the impact of control measures applied to animals?
Strict control measures have resulted in a significant reduction of zoonoses in humans.
100
What are some specific actions of the veterinary profession?
Examples include monitoring factors using Geographic Information Systems, environmental control, wildlife monitoring, in vitro investigations, health education, production of diagnostic tests and vaccines, and application of translational medicine.
101
What does monitoring factors in Geographic Information Systems help with?
It helps indicate changes for modeling and forecasting of diseases.
102
How does environmental control contribute to zoonotic disease management?
It indirectly interferes with the control of vectors and/or hosts that transmit zoonotic diseases.
103
What is the purpose of monitoring wildlife in veterinary actions?
To evaluate changes in the host and potential pathogens.
104
What is the focus of in vitro investigations in veterinary medicine?
To study the evolution of the characteristics of infectious agents over time.
105
What is the goal of health education provided by veterinarians?
To clarify risks and care to be taken in human-animal contact.
106
What is produced using animal models in veterinary medicine?
Diagnostic tests and vaccines based on comparative medicine.
107
What is the significance of translational medicine and zoobiquity?
It facilitates the exchange of experiences between teams of multi-health professionals.
108
What practices can help prevent zoonotic pandemics like COVID-19?
Practices such as zoobiquity and translational medicine can be effectively applied in stable economies to help prevent zoonotic pandemics.
109
What are some professional containment activities used in veterinary practice?
Isolation and quarantine measures are customary in veterinary practice and could be useful for preventing disease spread.
110
What is the main strategy for preventing zoonotic diseases?
Surveillance measures represent the main strategy for preventing zoonotic diseases.
111
What is the importance of active surveillance?
Active surveillance is important for investigating potential animal pathogens and their possible emergence in humans.
112
How can high-risk behaviors be addressed?
Identifying high-risk behaviors can lead to health education activities aimed at changing habits that contribute to pathogen dissemination.
113
Why are veterinarians important in wildlife surveillance?
Veterinarians play a crucial role in wildlife surveillance, which is essential for controlling emerging zoonoses.
114
What factors contribute to the emergence of new pathogens?
Ecological changes, molecular variations of infectious agents, and wild animal-human interactions are main factors for the emergence of new pathogens.
115
What is the role of microbiology studies in zoonotic diseases?
Microbiology studies combined with physiology, immunology, and behavioral ecology can explain the absence of clinical signs in asymptomatic animal hosts.
116
How can animal models be used in disease research?
Specific animal models can provide ideal conditions for reproducing diseases similar to human responses and are used for vaccine and treatment tests.
117
What is the One Health approach?
The One Health approach considers the shared risks between humans and animals in interventions.
118
How does veterinary epidemiology contribute to disease forecasting?
Veterinary epidemiology aligns with disease forecasting through georeferencing software that associates environmental variables.
119
What is the significance of sentinel animals?
Sentinel animals, which are more susceptible or have shorter lifespans, can signal potential threats to human health.
120
What is needed for the development of research and control of zoonosis?
The convergence of geocoded multi-temporal data and multi-professional collaborations worldwide is needed for sophisticated research and control of zoonosis.
121
What must be constantly monitored regarding zoonotic pathogens?
The molecular evolutionary aspects of zoonotic or potential pathogens.
122
What is genomic plasticity?
A factor widely identified in viruses and bacteria within animal hosts and hostile environmental conditions.
123
What are some hostile environmental conditions that affect pathogens?
Thermal, oxidative, nutritional, and chemical stress.
124
What did van Doremalen et al. demonstrate?
The preliminary efficacy of a vaccine tested on mice and Rhesus macaques against SARS-CoV-2.
125
What role do veterinarians play in One Health?
Veterinarians are part of multi-professional teams that contribute to health initiatives.
126
What was developed in Chile involving veterinarians?
An improved procedure to produce nanobodies using alpacas as donor species.
127
What is the significance of the proposed methodology for nanobody selection?
It may help in the generation of diagnostic and potentially therapeutic measures against COVID-19 and other infectious viruses.
128
What variant of H1N1 was reported by Sun et al.?
A variant from pigs with the greatest pathogenic potential in humans.
129
What did Maki et al. report regarding wildlife monitoring?
It allowed the implementation of control strategies such as the use of bait vaccines to control wild rabies.
130
What factors contribute to the risk of new public health emergencies?
High capacity of zoonotic pathogens to mutate and deficiencies in surveillance systems.
131
What are the main risk factors leading to outbreaks?
Consumption and sale of wild animals, poor food security rules, urbanization, and direct contact with animal reservoirs.
132
What is necessary to avoid future emerging zoonoses?
Preparation and maintaining natural barriers between animal reservoirs and human society.
133
What position should veterinarians assume in One Health?
A position of leadership in research and preventive actions.
134
What is a zoonosis?
A zoonosis is an infectious disease that has jumped from a non-human animal to humans.
135
What types of pathogens can cause zoonoses?
Zoonotic pathogens may be bacterial, viral, or parasitic, or may involve unconventional agents.
136
How can zoonotic diseases spread to humans?
They can spread through direct contact or through food, water, or the environment.
137
Why are zoonoses a public health problem?
They represent a major public health problem due to our close relationship with animals in agriculture, as companions, and in the natural environment.
138
What impact can zoonoses have on animal product trade?
Zoonoses can cause disruptions in the production and trade of animal products for food and other uses.
139
What percentage of newly identified infectious diseases are zoonoses?
Zoonoses comprise a large percentage of all newly identified infectious diseases as well as many existing ones.
140
Can zoonoses mutate into human-only strains?
Yes, some diseases, such as HIV, begin as a zoonosis but later mutate into human-only strains.
141
What are examples of zoonoses that cause outbreaks?
Ebola virus disease and salmonellosis are examples of zoonoses that can cause recurring disease outbreaks.
142
What zoonosis has the potential to cause global pandemics?
The novel coronavirus that causes COVID-19 has the potential to cause global pandemics.
143
What are some prevention methods for zoonotic diseases?
Effective prevention methods include safe animal care guidelines, clean drinking water standards, and education campaigns on handwashing.
144
What complicates the control and prevention of zoonoses?
Antimicrobial resistance complicates the control and prevention of zoonoses.
145
How does antibiotic use in animals affect zoonotic pathogens?
The widespread use of antibiotics in animals increases the potential for drug-resistant strains of zoonotic pathogens.
146
Who is at risk of zoonotic diseases?
Anyone who has contact with domestic, agricultural, or wild animals is at risk of zoonotic diseases.
147
Why are markets selling wild animal products high risk?
Markets selling the meat or by-products of wild animals are high risk due to the large number of new or undocumented pathogens.
148
What increases the risk of zoonotic diseases in urban areas?
Urbanization and the destruction of natural habitats increase the risk by increasing contact between humans and wild animals.
HOSA Veterinary Science
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