This ppt in short deals with chicken pox and small pox which are most common viral exanthems seen in children..

1. CHICKEN
POX &
SMALL POX
DR. PUSHKAR KUMAR
MBBS,MD(MEDICINE)
JUNIOR RESIDENT
DEPARTMENT OF MEDICINE
DMCH,LAHERIASARAI
DARBHANGA,BIHAR

2. Classification
Of Viruses
I.DNA VIRUSES :
A)Doube stranded dna
 Papova Virus
 Adenovirus
 Human Herpes Virus 1-8 :
Alpha-neurotropic
Beta-epitheotropic
Gamma-lymphotropic
 Pox virus
 Hepatitis B Virus
B)Single stranded dna- Parvovirus-Aplastic crisis
II.RNA VIRUSES :
A)Doube stranded Rna- Reovirus,Rotavirus
B) Positive Sense Single stranded Rna –Picorna,Corona,Toga-
Rubella
C) Negative Sense Single Stranded Rna-
Orthomyxo;Paramyxo-measles,mumps;
Arenavirus;Rhabdovirus;Bunyavirus
D) Retrovirus-enveloped rna virus using reverse transcriptase
to make dna e.g. HIV-I & II ; HTLV-I & II

15. Characteristic Features Of Varicella rash
• 1) Distribution- symmetrical Centrifugal axilla
affected Palm and sole spared Mucosa affected
• 2)Rapid evolution Vesicles - not umblicated,
• 3) Pleomorphism-all stages of rash at same time
• 4)Fever-exerbation with each crop

20. Reye's syndrome-acute encephalopathy associated
with fatty degeneration of viscera especially liver

43. SMALL POX
• WHO declared global eradication in May 1980
reserve stock of vaccine at WHO headquarter