Virology Flashcards by Istiak Mahmud Siam

Protein coat of virus is called ?/

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Capsid

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Subunits of capsid is called ??

Capsomers

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Viral nucelic acids is called ??

DNA / RNA

Not both

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Basic structure of virus - Content ??

Viral nucleic acids
Capsid
Envelope

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Function of envelope ??

Protection
Attachment to the target cell

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All virus are - H/D ??

Haploid

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Envelope content of a virus ??

Surface glycoprotein

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Capsid made of — ??

Protein

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Function of capsid ??

Protection
Attachment
Act as antigen
Provide structural symmetry of virus

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Cuase of geometry symmetry of virus ??

Arrangement of capsomere

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Geometry symmetry of virus type ??

Icosahedral
Helical

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Icosahedral virus ??

20 triangle - symmetric figure

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Helical capsomere of virus ??

Hollow coil - Rod shaped

envelope present

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Virion definiton ??

Complete virus particle that is structurally intact & infectious `

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Polio virion example ??

NA covered by protein coat

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Herpes virion part ??

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Whole virus – Virion

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Pseudovirus definition ??

PV contain host cell DNA instead of viral DNA within the capsid

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Why non-enveloped viruses are resistant to detergent ??

The presence of an envelope confers instability on the virus

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Examples of atypical virus like Agents ??

Defective
Pseudovirus
Viriods
Prions

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Defective virus definition ??

A virus that composed of viral nucleic acid & proteins but cannot replicate without a helper Virus

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Example of defective virus ??

Hepatitis-D

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icosahedral example ?

HBV
Herpes simplx
adenovirus
rubella

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helical virus example ?

IMR
influenza
measles
rabies

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Feco-oral ?

HAV
rota
polio

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insect virus <

yellow fever

Viriods disease ??

Plant d Not implicated Human diseases | 595

Infection induces AB & Inflammation P/A in prions ??

NOOOOOOOO in prions | 596

Does prions have NA ??

NOOOOOOOOOOOOO | 595

Defcetive virus cause ??

Mutation / deletion of part of their genetic amterials | 595

Viriods NA ??

RNA | 595

Protein coat & Envelope present where ??

Virus Not in viriods | 595

Virus NA ?

DNA / RNA | 595

Prions appearance in Electron microscope ???

Filamentous rods Amyloid like | 596

envelope thaka valo na kharap ?

kharap confers instability sensitive to heat drying detergents and lipid solvents such as alchohol and ether

smallest virus <

polio

largest virus?

pox

HDV need which part of HBV for replication ?

surface Atg

enveloped virus name ?

596

SS virus <

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segmented virus ?

Influenza rota retro arena bunya

DS virus name <

596

vertical meaning <

mother to child

horizontal meaning >

person to person

mosquito bite disease <

DYE-C dengue yellow fever encephalitis chikungunya

Transplacental perinatal infections by which virus ?

CPR- HIV- HBV HCV Cytomegalovirus ParvoB19 Rubella

which bacteria transplacentally /

treponema pallidum listeria

breast feeding ?

HIV Human T cell lymphotrophic virus -HTLV CMV

at the time of birth which virus ?

HIV- HBV HCV herpes-2 papilloma

which protozoa transplacentally /

toxoplasma gondii

Rabies cell tropism >

Ach

Herpes cell tropisim <

heparan sulfate fibroblast growth factor

which bacteria at the time of birth <.

neisseria chlamydia group-B streptococcus

measles and HIV cell tropism <

HIV = CD4+ M= CD46

live vaccine name ,

MM RR VZ measles mumps rubella rota varicella zooster

killed vaccine name <

rabies HAV

intracytoplasmic inclusion ?

negri -rabies guarnieri - small pox + vaccinia

intanuclear inclusion ?

cow dry type-A --- herpes simplex + zooster cow dry type -B---- poliomyelitis

both intranucler + cytoplasmic >

measles

LIVE + KILLED ?>?

polio I-A + B

Virus causing diarrhea <

norwalk calici rota adeno astro corona

CPE - Cytoplasm <

inclusion bodies vacuoles

CPE change in nucleus <

inlusion bodies thickening of N swelling nucleolar changes margination of chromatin 611

slow virus infection name > 612

kuru creutzfeldt -jakob

CPE - membrane <

loss of adherence cell fusion - syncytia

CPE-CELLULAR ,

lysis disintregation

;atent site of EPstein barr ?

B lymphocyte

mRNA vaccine of corona ?

moderna \ pFize/ Biontech

latent infection site of Varicella -Z ?

TRIGEMINAL / thoracic ganglia

chronic carrier infection ?

HCV HBV CMV neonatal rubella

latwnt site to Herpes - 1 >

cranial sensory ganglia

Protein subunit vaccine of Corona ?

novavax

latent site of Herpes-2 /

lumbar and sacral sensory ganglia

vector vaccine of covid <

JOHNSON & JOHNSON oxford/astrazenica

5th disease name >

erythema infectiosum slapped check syndrome Parvo-B19