1.
Which Virus grows easily in cell cultures?
Correct Answer
B. Influenza
Explanation
Influenza virus is known to grow easily in cell cultures. This is because it has adapted to efficiently infect and replicate within host cells, making it suitable for laboratory cultivation. Influenza viruses are commonly used in research and vaccine development, and their ability to replicate in cell cultures allows for easier study and manipulation of the virus.
2.
Which Virus causes respiratory infections that can cause serious complications in infants and small children?
Correct Answer
A. Parainfluenza
Explanation
Parainfluenza virus causes respiratory infections that can lead to severe complications in infants and small children. This virus is known to cause croup, a condition characterized by inflammation of the airways, leading to difficulty in breathing and a barking cough. It can also cause bronchiolitis, an infection of the small airways in the lungs. These respiratory infections can be particularly dangerous for young children with underdeveloped immune systems, as they may require hospitalization and medical intervention.
3.
Which virus can cause pharyngitis, conjunctivitis, and pneumonia in children?
Correct Answer
C. Adenovirus
Explanation
Adenovirus can cause pharyngitis, conjunctivitis, and pneumonia in children. Adenoviruses are a group of viruses that can cause a range of respiratory illnesses, including the common cold, bronchitis, and pneumonia. They can also cause other symptoms such as sore throat, red and watery eyes, and cough. In children, adenoviruses are known to be a common cause of respiratory infections and can lead to more severe complications such as pneumonia. Therefore, adenovirus is the correct answer for this question.
4.
Which is the most common respiratory pathogen for children under 2 years?
Correct Answer
A. Respiratory Syncytial Virus
Explanation
Respiratory Syncytial Virus (RSV) is the most common respiratory pathogen for children under 2 years. RSV is a highly contagious virus that causes respiratory infections, including bronchiolitis and pneumonia, in young children. It spreads through respiratory droplets and can cause severe illness in infants and young children. RSV infections are most common during the winter months and can lead to hospitalization in some cases. Therefore, RSV is considered the most common respiratory pathogen in this age group.
5.
Which are the symptoms of Parainfluenza?
Correct Answer
A. Can Cause laryngotracheobronchitis and bronchitis
Explanation
The correct answer states that Parainfluenza can cause laryngotracheobronchitis and bronchitis. This means that individuals infected with Parainfluenza may experience inflammation and infection in the upper respiratory tract, particularly in the larynx, trachea, and bronchi. These symptoms can result in a persistent cough, hoarseness, and difficulty breathing.
6.
Which are the symptoms of Respiratory Syncytial Virus?
Correct Answer
A. Can cause bronchitis and pneumonia
Explanation
The correct answer is "Can cause bronchitis and pneumonia." This is because Respiratory Syncytial Virus (RSV) is known to cause respiratory infections such as bronchitis and pneumonia. RSV is a common virus that affects the respiratory system, particularly in young children and older adults. It can cause inflammation and infection in the airways, leading to symptoms such as cough, difficulty breathing, and fever. Severe cases of RSV infection can result in bronchiolitis or pneumonia, which can be serious and require medical intervention.
7.
Which is the symptom for Influenza?
Correct Answer
C. Actute febrile illness with respiratory symptoms
Explanation
The correct answer for the symptom of Influenza is "acute febrile illness with respiratory symptoms." Influenza is characterized by a sudden onset of high fever, cough, sore throat, runny or stuffy nose, body aches, headache, and fatigue. These respiratory symptoms are common in individuals with Influenza and help differentiate it from other respiratory illnesses such as the common cold.
8.
Which symptoms belong to Rhinovirus?
Correct Answer
C. Common Cold
Explanation
The correct answer is "Common Cold" because the symptoms described in the question, such as bronchitis and pneumonia, acute febrile illness with respiratory symptoms, pharyngitis and conjunctivitis, laryngotracheobronchitis and bronchitis, are all commonly associated with the common cold caused by the Rhinovirus.
9.
Which symptoms belong to Adenovirus?
Correct Answer
A. pHaryngitis and conjuctivitis and pneumonia in small children
Explanation
Adenovirus can cause various symptoms, including pharyngitis (inflammation of the throat), conjunctivitis (pink eye), and pneumonia (lung infection) in small children. Therefore, the symptoms "Pharyngitis and conjunctivitis and pneumonia in small children" belong to Adenovirus.
10.
Which viruses do have a vaccine?
Correct Answer(s)
A. Influenza
E. Adenovirus
Explanation
The viruses that have a vaccine are Influenza and Adenovirus.
11.
Which virus has over 100 serotypes and changes so frequently a vaccine is usless?
Correct Answer(s)
Rhinovirus
Explanation
Rhinovirus is the correct answer because it has over 100 serotypes, which means there are more than 100 different variations of the virus. Additionally, the virus changes frequently, making it difficult to develop an effective vaccine. This constant mutation allows the virus to evade the immune system and renders the vaccine useless in preventing infection.
12.
How do you do detect a virus?
Correct Answer(s)
1) Fastest approach is to use a combination of detection of viral antigens with immunoflorescent combined with inoculation in cell cultures.
2) clinical specimens: nasopharyngeal aspirates , throat washing, throat/nasal swabs
as well as serological diagnosis ( which is less useful and dated paired sera is used)
Explanation
The fastest approach to detect a virus is by using a combination of detecting viral antigens with immunofluorescent combined with inoculation in cell cultures. This method allows for quick identification of the virus by detecting specific viral proteins and observing their presence in infected cells. Additionally, clinical specimens such as nasopharyngeal aspirates, throat washing, and throat/nasal swabs can be used for detection, along with serological diagnosis using paired sera, although this method is less useful and outdated.