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Influenza


- Influenza is a respiratory infectious disease caused by influenza viruses that belong to the family Orthomyxoviridae.

- Influenza viruses are classified into four types: A, B, C, and D. Type A and B are responsible for most human infections and seasonal epidemics. Type C causes mild respiratory illness. Type D mainly affects cattle.

- Influenza viruses are further divided into subtypes based on the combination of two surface proteins: hemagglutinin (H) and neuraminidase (N). For example, H1N1, H3N2, H5N1, etc.

- Influenza viruses undergo frequent genetic changes that result in antigenic drift (minor changes) or antigenic shift (major changes). Antigenic drift occurs every year and causes seasonal epidemics. Antigenic shift occurs occasionally and causes pandemics.

- Influenza is a global public health problem that affects millions of people every year and causes significant morbidity and mortality. According to the World Health Organization (WHO), influenza causes 3 to 5 million cases of severe illness and 290,000 to 650,000 deaths annually.

Questions on Influenza

Correct Answer is D

Explanation

This is the correct choice. Influenza is transmitted through respiratory droplets generated by coughing or sneezing. The droplets can travel a short distance and can be inhaled by individuals nearby, leading to infection.

Correct Answer is ["C","E"]

Explanation

This is a correct choice. Dry cough is a common symptom of influenza. Influenza can cause irritation in the respiratory tract, leading to a dry cough.

Correct Answer is A

Explanation

"The incubation period of influenza is usually less than 24 hours." This is incorrect. The incubation period of influenza is longer than just a few hours; it typically takes a couple of days before symptoms appear.

Correct Answer is C

Explanation

People with weakened immune systems are indeed at risk of severe influenza complications. Individuals with weakened immune systems, such as the elderly, pregnant women, and those with certain medical conditions, are more susceptible to severe influenza symptoms and complications.

Correct Answer is D

Explanation

Washing hands frequently with soap and water is an effective preventive measure for influenza. Influenza viruses can survive on surfaces for a limited time, and touching contaminated surfaces and then touching the face can lead to infection. Regular handwashing helps reduce the risk of transmission.

Correct Answer is D

Explanation

<p>This explanation is accurate. Influenza is transmitted through respiratory droplets generated by coughing or sneezing of an infected person. These droplets can be inhaled by individuals in close proximity, leading to infection. Proper hand hygiene and respiratory etiquette are essential to prevent the spread of influenza. <strong></strong></p>

Correct Answer is A

Explanation

D is incorrect because the symptoms are not suggestive of allergies. Allergies typically present with different symptoms, such as sneezing, itching, and a runny or stuffy nose. The symptoms of fever, headache, and body aches are not characteristic of allergies.

Correct Answer is ["B","C","D"]

Explanation

E is incorrect because individuals with a history of allergies are not considered a high-risk group for severe influenza complications. Allergies do not directly increase the risk of severe influenza outcomes.

The rapid antigen test is a quick diagnostic test that detects specific proteins (antigens) on the surface of the influenza virus. It can provide results within 15-30 minutes, making it useful for rapid screening. However, it is less sensitive than PCR and may produce false-negative results in some

Offering antibiotics for bacterial infection is not necessary for a patient with influenza. Influenza is caused by a virus, not bacteria, so antibiotics are ineffective against it. Antibiotics should only be prescribed if there is a secondary bacterial infection.

The statement, "You need to take the antiviral medication only if you have a fever," is incorrect as well. Antiviral medications should be taken as prescribed by the healthcare provider, regardless of fever presence, to effectively treat influenza.

The statement, "The influenza vaccine is not recommended for anyone aged 6 months and older," indicates the need for further education. Influenza vaccination is recommended for all individuals aged 6 months and older, especially those at higher risk for complications, such as older adults, young chi

Recommending the influenza vaccine for healthcare workers is a crucial prevention strategy. Vaccination is one of the most effective ways to protect healthcare workers and their patients from the influenza virus. By vaccinating healthcare workers, the risk of spreading the virus within the healthcar

Influenza vaccines do not contain live influenza viruses. The majority of influenza vaccines are inactivated or made from components of the virus, making it impossible for them to cause the flu in vaccinated individuals. Some vaccines, like the nasal spray, may contain weakened live viruses, but the

The nurse should inform the client that the rapid antigen test is not suitable for confirming the diagnosis of influenza. While it can quickly identify some cases of influenza, it is not as reliable as other diagnostic methods like molecular tests (PCR) for confirming influenza. False-negative resul

<p>Implementing standard precautions and droplet precautions is crucial when caring for patients with suspected or confirmed influenza. Standard precautions include hand hygiene, wearing appropriate personal protective equipment, and following proper infection control protocols. Droplet precautions
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