Respiratory Tract Infections 1 Flashcards
community acquired pneumonia is mainly caused by ______ and affects the ____ part of the lung
bacteria; lobar parts of the lung is affected
______ is the most common cause of the common cold
rhinovirus
most of the rhinovirus A,B, an C use ______ to attach to and enter the host cell
ICAM 1
what is a specific property of Rhinovirus that aids in their ability to evade local host defenses?
adhesion to mucosa
pneumonia with mixed flora is most likely to be :
aspiration pneumonia: aspiration of upper respiratory tract flora into the lung
is rhinovirus enveloped or non enveloped
non enveloped
what are the most common symptoms of the common cold?
- nasal congestion
- runny nose
- scratchy throat
- sneezing
what virus is NOT seen during the winter?
rhinovirus
_____ is a negatively charged RNA virus
RSV
infection of the respiratory epithelium will cause _______ which exacerbates conditions such as COPD and asthma
airway remodeling
what is a example of pathogen with a segmented RNA
influenza virus
what virus would you NOT see during the winter?
rhinovirus
what are the three most common causes of the common cold?
- rhinovirus
- coronavirus
- adenovirus
_______virus is seen during the winter and spring
coronavirus, RSV and influenza virus
small icosahedral non developed virus that is positive stranded RNA
rhinovirus
linear ds DNA is see in which virus
adenovirus
describe the seasonality of rhinovirus
spring, summer and fall (not winter)
rhinovirus is labile at ____ pH
acidic
______ can cause the exacerbation of COPD and asthma
rhinovirus
____________ is a pathogen that causes common cold that is seen throughout the year
adenovirus
because rhinovirus is enveloped/non enveloped, it makes it less susceptible to surface cleaners and disinfectants
non enveloped
this pathogen resists destruction in the alveolar macrophages :
legionella pneumophila
the second most common receptor that rhinoviruses use to attach and enter the host cell is ______
LDL (low density lipoprotein receptor)
name three positively charged RNA viruses
- rhinovirus
- picornavirus
- coronoavirus
hospital acquired (nosocomial) pneumonia is caused mainly by ____ and affects the _____ part of the lung
viral; bronchial;
rhinovirus changes its antigenic properties via _____
antigenic drift
what pathogen has a property that interferes with the cilia of the respiratory tract?
bordetalla pertussis