One deck to rule them all (part 2) Flashcards
(29 cards)
Size of virus
20-400nm
What is a virion?
Extracellular / inactive form of a virus
Enzyme needed by RNA viruses
RNA dependant RNA polymerase
Origin of capsid
Viral origin
Nt size of viroids
120-475 nt
Difference between bacterial pharyngitis and adenovirus pharyngitis
bacterial pharyngitis has inflammed tonsils with pus
Primary HHV1 infection symptom
herpetic gingivostomatitis
What is an exanthem?
widespread rash
What is herpes zoster ophtalmicus
Vision loss if V1 is affected, only happens in immunocompromised
How does EBV infect cells?
Envelope glycoprotein binds CD21 to infect B cells
What happens if you give amoxicillin / ampicillin to a mono patient?
They can develop a maculopapular rash
What is burkitt lymphoma?
Aggressive B cell non Hodgkin lymphoma
EBV diagnosis?
heterophile ab test (monospot)
Acid in the peptidoglycan layer
teichoic acid
Bacterial peptidoglycans are made of
- NAG, NAM
- directly linked via covalent bonds
- cross linked by transpeptidase
Non essential structures of bacteria (6)
- capsule
- plasmid
- spore
- flagella
- fimbriae
- pili
Taxonomy
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- domain (bacteria)
- phylus (proteobacteria)
- class (gamma proteobacteria)
- order (enterobacteriales)
- family (enterobacteriaceae)
- genus (escherishia)
- species (e coli)
Heterotrophic bacteria?
obtain energy from oxidation of organic compounds
physical methods of disinfection
- cooking
- pasteurisation
- tyndillisation
Antimicrobial drugs in combination
- trimethoprim / sulfamethoxazole : cotrimoxazole
- amoxicillin / clavulanic acid : co-amoxiclav
- vancomycin / gentamycin
Antiseptics (3)
- alcohols
- oxidizing agents
- halogens
Disinfectants (3)
- Quaternary ammonnium compounds
- Aldehydes
- Phenols
Gangrene clostridia
- perfringens
- novyi
What is the limitation of cephalosporins
they don’t work on LAME