Micro Mcq 4 Flashcards
What condition is M. pneumoniae associated with?
Tracheobronchitis
What condition is M. genitalium associated with?
Nongonococcal urethritis
What test is the choice for diagnosing Mycoplasmatales infections?
Enzyme immunoassays
What is Pl adhesin associated with?
Persistent cough
What drug is effective for treating HCV infection?
Sofosbuvir
Which hepatitis viruses are non-enveloped?
HAV and HEV
What test confirms HEV in stool samples?
PCR
Name a standard precaution for infection control.
Hand disinfection with alcohol-based rubs or soap and water
What hygiene practice is included in standard precautions?
Respiratory hygiene (cough etiquette)
What equipment is included in standard precautions?
Personal protective equipment
How should sharps and patient care equipment be handled?
Appropriately
What congenital condition can Rubellavirus cause in infants?
Congenital heart disease
Does Rubellavirus infection confer lifelong immunity?
Yes
To which genus does Rubellavirus belong?
Alphaviruses
How is Rubellavirus transmitted from mother to fetus?
Vertical transmission
What are the main symptoms of Rocky Mountain Spotted Fever?
High fever and rash
What test diagnoses Rocky Mountain Spotted Fever?
Weil-Felix test
What organism causes Rocky Mountain Spotted Fever?
Rickettsia rickettsii
Is Rocky Mountain Spotted Fever a zoonosis?
Yes
What type of cell culture is used for diagnosing CMV?
Human diploid fibroblasts
What diagnostic method detects CMV viral genome?
PCR
What material is used for detecting CMV antigens?
Bronchoalveolar lavage material
What characteristic cells are seen in CMV infection?
Owl’s-eye cells
How does BSE spread among cattle?
Through contaminated feed
Is L. pneumophila facultatively intracellular?
Yes
What are the most commonly isolated serotypes of L. pneumophila?
Serotypes 1 and 6
Who is at higher risk for L. pneumophila infection?
Elderly individuals
Are most L. pneumophila infections symptomatic or asymptomatic?
Asymptomatic
What is the main cause of death in cholera patients?
Dehydration
What does co-infection with a defective virus lead to in HBV?
More chronicity
What does HBe antigen indicate?
High infectivity and replication
What type of virus is HBV?
Double-stranded DNA virus
When is the HBV recombinant DNA vaccine administered?
At birth, 2, 4, and 6 months
