Which of the following is Not true poxvirus ?
Anonymous Quiz
7%
A) Variola
18%
B) Vaccinia
11%
C) Cowpox
8%
D) Monkeypox
56%
E) Chickenpox
Which of the following statements best explains the diagnostic value of Guarnieri bodies in poxvirus infections?
Anonymous Quiz
15%
A) Their presence confirms smallpox with 100% specificity
3%
B) Their absence rules out all poxvirus infections
67%
C) They are cytoplasmic inclusion bodies visible on H&E stain and are seen in most, but not all.
9%
D) They are nuclear inclusion bodies seen exclusively in molluscum contagiosum
6%
E) They are only present in vaccinated individuals with prior poxvirus exposure
Guarnieri bodies observed in skin biopsies from suspected poxvirus infection are best characterized as
Anonymous Quiz
6%
A) Blue basophilic nuclear bodies indicating late-stage viral lysis
59%
B) Pink cytoplasmic inclusions representing viral assembly sites
19%
C) Pink cytoplasmic inclusions indicating late-stage viral lysis
12%
D) Eosinophilic nuclear inclusions associated with herpesvirus replication
4%
E) Lipid vacuoles produced during host immune response
Rabies Virus can cause infections to human by
Anonymous Quiz
50%
A) Bite of dog
2%
B) Licks
4%
C) Aerosols
19%
D) A and C
25%
E) A . B and C
Which factor enables rabies virus to access the CNS despite absence of viremia?
Anonymous Quiz
8%
A) Capsid proteolysis in bloodstream
46%
B ) Retrograde axonal transport via nicotinic acetylcholine receptor binding
9%
C) Direct lymphatic drainage from dermis
16%
D) Passive diffusion through blood-brain barrier
20%
E) All of choices is correct
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Which of the following is highly successful in preventing rabies ?
Anonymous Quiz
18%
A) PEP
9%
B) MNT
24%
C) RFFIT
7%
D) Administration
43%
E) All of them
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The most common complication of measles is
Anonymous Quiz
1%
A) Red Eye
19%
B) Skin Rash
60%
C) Koplik spots
9%
D) Meningitis
11%
E) Otitis media
SSPE generally develops ________ after a person has a measles
Anonymous Quiz
16%
A) 1-3 years
12%
B) 2-4 years
19%
C) 8-10 years
44%
D) 7-10 years
10%
E) 5 years
The most common cause of lower respiratory tract illness in infant and young children.
Anonymous Quiz
8%
A) Mumps
20%
B) Influenza virus
53%
C) RSV
9%
D) Measels
9%
E) HPIV
Which of the following family can cause lymphoma and Hodgkin’s lymphoma tumour?
Anonymous Quiz
15%
A) Papoviriade
13%
B) Poxviriade
14%
C) Adenoviriade
47%
D)Herpesviriade
11%
E) Polymavirdae
Uterine ( cervical ) cancer can belong in which of the following tumour virus?
Anonymous Quiz
16%
A) RNA tumour virus
36%
B) DNA tumour virus
28%
C) DNA and RNA tumour virus
16%
D) Retroviruses
4%
E) None of them
Viruses are defined obligate intracellular pathogens because
Anonymous Quiz
4%
A) Are capable of independent replication
65%
B ) They replicated only within living host cell
7%
C ) They do not have cellular composition
8%
D ) They contain only nucleic acid either DNA or RNA
15%
E ) All of them is correct
Which of the following uniquely characterizes the influenza virus life cycle compared to most RNA viruses?
Anonymous Quiz
15%
A) Fusion via M1 at neutral pH
8%
B) Direct genome translation in cytoplasm
55%
C) Nuclear transcription by viral RNA polymerase
14%
D) Cytoplasmic genome replication using host enzymes
9%
E) Envelope fusion independent of endosomal pH
Which HIV enzyme catalyzes the insertion of viral DNA into the host genome?
Anonymous Quiz
3%
Exonuclease
46%
Reverse transcriptase
47%
Integrase
3%
Ligase
0%
RNase H
Which co-receptor is predominantly used by HIV to infect T lymphocytes?
Anonymous Quiz
3%
CCR2
74%
CXCR4
18%
CCR5
5%
CD28
0%
CD40L
Forwarded from الثالثة وزاريات مسلم جوده (مسلم جوده)
Herpes virus
Pox virus
Adenovirus
HBV
كلهن دبل ستراند دنا بس هذا سنكل💔😔
Parvovirus = ssDNA
_____
ملاحظة شاملة ع الفيروسات ب الحقيبة الي تملك جينوم ال DNA
تكدر تحفظ هاي الملاحظة الي تخص فيروسات DNA
وتكول الفيروسات الباقية ب الحقيبة
كلها ssRNA عدا ال rotavirus dsRNA
Pox virus
Adenovirus
HBV
كلهن دبل ستراند دنا بس هذا سنكل💔😔
Parvovirus = ssDNA
_____
ملاحظة شاملة ع الفيروسات ب الحقيبة الي تملك جينوم ال DNA
تكدر تحفظ هاي الملاحظة الي تخص فيروسات DNA
وتكول الفيروسات الباقية ب الحقيبة
كلها ssRNA عدا ال rotavirus dsRNA
Forwarded from الثالثة وزاريات مسلم جوده (مسلم جوده)
الثالثة وزاريات مسلم جوده
Herpes virus Pox virus Adenovirus HBV كلهن دبل ستراند دنا بس هذا سنكل💔😔 Parvovirus = ssDNA _____ ملاحظة شاملة ع الفيروسات ب الحقيبة الي تملك جينوم ال DNA تكدر تحفظ هاي الملاحظة الي تخص فيروسات DNA وتكول الفيروسات الباقية ب الحقيبة كلها ssRNA عدا…
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بخصوص التماثل ( Symmetry ) اذا جابوا طُلاب
عدنا 3 أنواع من عدها
الأول Icosahedral هذا يكون متعدد السطوح موجود بـ DNA or RNA Viruses
الثاني الحلزوني Helical هذا فقط بالـRNA Viruses
الأخير هوَ الـComplex المعقد هذا يگون حصرًا للفايروسات الي ما تمتلك أي تماثل مثل العاثيات الـBacteriophage .
عدنا 3 أنواع من عدها
الأول Icosahedral هذا يكون متعدد السطوح موجود بـ DNA or RNA Viruses
الثاني الحلزوني Helical هذا فقط بالـRNA Viruses
الأخير هوَ الـComplex المعقد هذا يگون حصرًا للفايروسات الي ما تمتلك أي تماثل مثل العاثيات الـBacteriophage .
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