SARS Quiz

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Questions and Answers

What is the main reservoir for SARS-COV-1?

Dogs

Cats

Bats (correct)

Pigs

What is the transmission mode of SARS?

Sexual transmission

Vector-borne

Contact with bodily fluids

Droplet aerosol and fomite deposited on the respiratory mucosal epithelium (correct)

What is the fatality rate of SARS?

20%

10% (correct)

What is the pathogenesis of SARS?

High viral load in the lower respiratory tract Signup and view all the answers

What is the recommended therapy for SARS?

Antiviral drugs Signup and view all the answers

What is the most common disease caused by Mycobacterial infections?

Tuberculosis Signup and view all the answers

What is the leading cause of death among infectious diseases worldwide?

Tuberculosis Signup and view all the answers

What is the most effective way to eliminate reservoirs of tuberculosis?

Early detection of cases and prompt treatment Signup and view all the answers

What is the possible cause of the increase in tuberculosis cases?

HIV/AIDS epidemic Signup and view all the answers

What is the most effective way to prevent the transmission of Salmonella?

Cooking food thoroughly Signup and view all the answers

What are the two surface glycoproteins found in influenza viruses and how many subtypes do they occur in?

Hemagglutinin (HA) and neuraminidase (NA), occurring in 16H and 9N subtypes respectively Signup and view all the answers

What is the estimated loss due to the negative economic impact on trade, travel, and tourism caused by influenza?

$30 to $150 billion Signup and view all the answers

What is the difference between antigenic shift and antigenic drift?

Antigenic shift is a major change in the influenza A virus that results in a new subtype, while antigenic drift is a minor change in the virus that occurs gradually over time Signup and view all the answers

What is the most common subtype of hemagglutinin and neuraminidase found in humans?

H3 and N1 Signup and view all the answers

Which influenza pandemic resulted in the highest number of deaths?

Spanish flu (H1N1) Signup and view all the answers

Study Notes

SARS (Severe Acute Respiratory Syndrome)

The main reservoir for SARS-COV-1 is believed to be bats.
SARS transmission occurs through close contact with an infected individual, primarily through respiratory droplets and contact with contaminated surfaces.

SARS Epidemiology

The fatality rate of SARS is approximately 9.6%.

SARS Pathogenesis

SARS pathogenesis involves the virus binding to ACE2 receptors on lung cells, leading to inflammation, immune responses, and cell damage.

SARS Treatment

The recommended therapy for SARS typically involves antiviral medications, corticosteroids, and supportive care.

Mycobacterial Infections

Tuberculosis (TB) is the most common disease caused by Mycobacterial infections.
TB is the leading cause of death among infectious diseases worldwide.

Tuberculosis Control

The most effective way to eliminate reservoirs of tuberculosis is through a combination of early detection, treatment, and vaccination efforts.
The possible cause of the increase in tuberculosis cases is attributed to factors such as HIV/AIDS, poverty, and inadequate healthcare infrastructure.

Salmonella Prevention

The most effective way to prevent the transmission of Salmonella is through proper food handling, cooking, and hygiene practices.

Influenza Viruses

The two surface glycoproteins found in influenza viruses are Hemagglutinin (HA) and Neuraminidase (NA), which occur in 18 HA and 11 NA subtypes, respectively.
The estimated loss due to the negative economic impact on trade, travel, and tourism caused by influenza is approximately $10 billion annually.

Influenza Evolution

Antigenic shift occurs when two or more different influenza viruses infect a host cell, resulting in a new virus with a unique combination of genes.
Antigenic drift occurs when an influenza virus undergoes gradual, incremental changes in its surface proteins.
The most common subtype of hemagglutinin and neuraminidase found in humans is H1N1.
The 1918 Spanish flu pandemic resulted in the highest number of deaths, with an estimated 50-100 million fatalities.

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Description

"Test Your Knowledge on the Severe Acute Respiratory Syndrome (SARS)" - Take this quiz to learn more about the causes, transmission, and symptoms of SARS, the first emerging infectious disease of the 21st century. With questions covering the history of the outbreak, as well as the biology of the virus and its transmission, this quiz is perfect for anyone interested in public health and infectious diseases. Put your knowledge to the test and see how much you know about SARS!