OTITIS EXTERNA AND MEDIA

Question 1

Definition of common cold

Answer 1

Viral infection of the URT (nose/throat) which cause the membranes of the head and throat to become inflamed. Usually, cold last from 3-7 days although some of the symptoms can last for 2 weeks. Rarely, a bacterial infection may complicate it

Question 2

Most common viral microorganisms that cause common cold

Answer 2

Rhinovirus, Coronavirus, Adenovirus, Myxovirus, Echovirus and Coxsackievirus (A/B)

Question 3

Most common bacterial microorganisms that cause common cold

Answer 3

S. aureus, Streptococcus pyogenes, Corynebacterium diphtheria, Mycoplasma pneumoniae and Chlamydophila pneumoniae

Question 4

1st most common viral cause of common cold during summer and fall :

Answer 4

Rhinovirus during summer and fall/ ICAM- receptor

Question 5

2nd most common viral cause of common cold during winter/spring:

Answer 5

Coronavirus

Question 6

+ssRNA, naked, linear, non-segmented, host polymerase, icosahedral and cytoplasm, which is the name and what family belongs?

Answer 6

Rhinovirus

Question 7

+ssRNA, enveloped, linear, non-segmented, host polymerase, helical and cytoplasm replication, which is the name and what family belongs?

Answer 7

Coronavirus (Coronaviridae)

Question 8

dsDNA, naked, linear, non-segmented, host polymerase and nucleus replication, which is the name and what family belongs?

Answer 8

Adenovirus (Adenoviridae)

Question 9

It’s conditions are Acid-labile
Grows best at 33C
>100 serotypes, which is the virus?

Answer 9

Rhinovirus

Question 10

Its conditions and mode of transmission include: FOR and
Respiratory droplets;
URD (children): serotypes 3/7
Acute respiratory disease: 3,7,14
Keratoconjunctivitis: 3 and 19
Conjunctivitis: 19
GI tract: 40 and 41, which is the virus?

Answer 10

Adenovirus

Question 11

Belongs to Orthomyxoviridae: Influenza
Paramyxoviridae: Mumps (Block 9), Measles (Block 10), RSV and parainfluenza, which virus is?

Answer 11

Myxovirus

Question 12

Influenza belongs to which family? And, Mumps, Measles and RSV and parainfluenza?

Answer 12

Orthomyxoviridae
Paramyxoviridae

Question 13

Family, DNA/Coat, Form, Segments, Shape, Polymerase, Replication of Echovirus and Coxsackivirus

Answer 13

+ssRNA
Naked
Linear
Non-segmented
Icosahedral
Host
Cytoplasm

Question 14

Its conditions and transmission include: Enteric
Cytopathic
Human
Orphan viruses
1-9, 11-27, 29-34
Asceptic meningitis; Polio-like muscle weakness, exanthems conjunctivitis, which is the virus?

Answer 14

Echovirus (Picornaviridae)

Question 15

Its conditions and transmission include: Hand-foot mouth disease A16,
Type A = infants (newborn, children)
Serotypes 1-22, 24
Type B:
Serotypes 1-6 (myocarditis, aspetic meningitis, mild respiratory disease)
which is the virus?

Answer 15

Coxsackievirus (Picornaviridae)

Question 16

Manifestations of Common Cold:

Answer 16

Nasal stuffiness, sneezing, headache, rhinorrhea (severity)
General malaise, lacrimation, sore throat, slight fever, anorexia, tracheobronchitis (cough/substernal discomfort)

Question 17

Common cold occur mostly in what population?

Answer 17

Children: <5yrs old: 5-7 colds per year
Adults: 1-2 colds per year
Winter infection: person-person, viruses: hand-hand, self-limited