Micro MCQ 3 Flashcards
(38 cards)
What step does amantadine act on in Orthomyxoviruses replication?
Uncoating step
Where does transcription take place in Orthomyxoviruses?
Nucleus
How are Orthomyxoviruses transmitted?
Via droplets
Describe the structure of Orthomyxoviruses.
Linear, negative-sense, single-stranded RNA viruses that are segmented, helical, and enveloped
What symptom is caused by measles?
Koplik’s spots against molar teeth
Where do Paramyxoviruses replicate?
Epithelial cells of the upper respiratory tract
What is the most common cause of bronchiolitis?
Respiratory syncytial virus
What complications can mumps cause?
Orchitis, epididymitis, and infertility
What pigments does Pseudomonas aeruginosa produce?
Various pigments
Is Pseudomonas aeruginosa an opportunistic pathogen?
Yes
What are the optimum temperatures for Pseudomonas aeruginosa growth?
37°C and 42°C
What type of bacteria is Pseudomonas aeruginosa?
Gram-negative aerobic bacillus
What cell layers can human herpesviruses infect?
Many different cell layers
What type of infection does HSV establish?
Lytic, latent, and recurrent infections
Which herpesviruses are lymphotropic?
Cytomegalovirus (CMV) and Epstein-Barr Virus (EBV)
Name human coronaviruses.
HCoV-NL63, HCoV-OC43, HCoV-229E, HCoV-HKU1
Is HCoV-RNA a designated human coronavirus?
No
Name slow virus diseases.
Fatal Familial Insomnia (FFI), Kuru, Creutzfeldt-Jakob Disease (CJD), Progressive Multifocal Leukoencephalopathy (PML)
Name viruses released without cell lysis.
Retroviruses, Papillomaviruses, Herpesviruses, Orthomyxoviruses
What is the most virulent strain of H. influenzae?
H. influenzae type b
What phenomenon does H. influenzae exhibit around Staphylococcus aureus?
Satellite phenomenon
How many antigenic serotypes does H. influenzae have?
Six (a–f)
What test detects all capsular serotypes of H. influenzae?
Rapid latex agglutination test
What is Actinomyces spp. associated with?
Intrauterine device use