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What is the genus of the measles virus?
What is the genus of the measles virus?
- Morbillivirus (correct)
- Paramyxoviridae
- Rubeola
- Paramyxovirus
How is measles primarily transmitted?
How is measles primarily transmitted?
- Ingestion of contaminated food
- Blood transfusion
- Respiratory secretions (correct)
- Skin contact
Before widespread vaccination, how many deaths did measles cause annually in 1980?
Before widespread vaccination, how many deaths did measles cause annually in 1980?
- 1 million
- 100,000
- 500,000
- 2.6 million (correct)
What is the general nature of the measles virus's genetic material?
What is the general nature of the measles virus's genetic material?
In which cells does the measles virus normally grow?
In which cells does the measles virus normally grow?
What is the most common symptom of a mumps infection?
What is the most common symptom of a mumps infection?
When do symptoms of mumps typically occur after exposure to the virus?
When do symptoms of mumps typically occur after exposure to the virus?
What is a rare complication of mumps that may result in reduced fertility in males?
What is a rare complication of mumps that may result in reduced fertility in males?
How is the mumps virus primarily transmitted?
How is the mumps virus primarily transmitted?
What percentage of mumps infections are asymptomatic?
What percentage of mumps infections are asymptomatic?
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Study Notes
Measles Virus
- The measles virus belongs to the genus Morbillivirus.
- Measles is primarily transmitted through respiratory droplets, such as through coughing and sneezing.
- Before widespread vaccination, measles caused approximately 2.6 million deaths annually in 1980.
- The measles virus has a single-stranded RNA genetic material.
- The measles virus normally grows in epithelial cells and macrophages.
Mumps Infection
- The most common symptom of a mumps infection is swelling of the parotid glands.
- Symptoms of mumps typically occur 16-18 days after exposure to the virus.
- A rare complication of mumps is orchitis, which may result in reduced fertility in males.
- The mumps virus is primarily transmitted through direct contact with respiratory droplets, such as through touching or sharing utensils.
- Approximately 30-40% of mumps infections are asymptomatic.
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