infectious disease -...
TRANSCRIPT
InfectiousDisease
SHORTANDCRISPCRAMMERPOINTS
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ReservoirofImportantInfectiousDisease
Reservoir Disease
Human Epidemictyphus,Dracunculiasis,Ancylostomiasis,Trenchfever,Ascarasis
Rodents Endemictyphus,Indiantick typhus,RMSF,Rickettsialpox
NonLiving
Soilharbourstetanus,anthrax,coccidiomycosis,Mycetoma
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TypesofHost
Disease Primary SecondaryTaperworm (T.saginata) Man CattleTaperworm (T.solium) PigGuineaworm CyclopesFilaria CulexSleeping sickness Tse tse flyMalaria Anopheles ManHydatid cyst Dog Sheep,cattle,man
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Carrier- types
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chronic healthy convalescent incubatory
malaria Polio diphtheria Diphtheria
meningitis typhoid typhoid measles
typhoid cholera cholera mumps
dysentery diphtheria dysentery polio
HBV meningitis pertussis Pertussis
gonorrhea HBV
influenza
ANTHROPO ZOONOSES
Vertebrates Man
ZOO ANTHROPONOSES
Man Vertebrates
AMPHI XENOSES
Man Vertebrates
Rabies
Cattle T.B.
Trypanosoma cruzi
CompositionofReducedOsmolarityORS
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Zoonoses (lessimportant)
Viral Bacterial Rickettsial ParasiticRabies Brucellosis TaeniasisYellowfever Leptospirosis Hydatid
diseaseJE* Plaque Leishmaniasis*KFD Human
salmonellosis*Chikungunya
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DiseasesAssociatedwithRodents(lessimportant)
Bacterial Viral Rickettsial Parasitic Others
Plaque Lassafever Scrubtyphus Hymenolepsis Ratbite fever
Tularemia Hemorrhagicfever
Murine typhus Leishmaniasis Leptospirosis
Salmonellosis Encephalitis Rickettsial pox Amoebiasis Histoplasmosis
Trichinosis
Chagas disease
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Rickettsial Diseases(v.v.imp)Diseases Rickettsial Agent Insectvectors Mammalian
reservoirsTyphus Group
Epidemic R.Prowazakii Louse(byscratch/crushing)
Human
Murine R.Typhi Flea Rodents(Rats)Scrub R.tsutsugamushi Mite*(bite of
larvalstage)Spottedfever
Indiantick R.Conorii Tick*(bite/scratch/crush)
Rodents,DogsRMSF R.RickettsiiRickettsial pox R. akari Mite*(bite) Mouse 9
Rickettsial Diseases(contd.)Diseases Rickettsial
AgentInsectvectors
Mammalianreservoirs
Distribution
OthersQfever C. Burnetti Nil
(Inhalation, Directinoculation)
Cattle,Sheep,Goats
Worldwide
Trenchfever Rochalimaeaquintana
Louse(faeces)
Human(only) Europe
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•Alsoserveasarthropod reservoir,bymaintaining therickettsiae through ovariantransmission• Bitecausesaneschar• Arthropod insectvectors(exceptQFever)
PeriodofCommunicability(v.v.imp)Disease PeriodofCommunicabilityChickenpox
1- 2daysbeforeto4- 5daysafterappearance ofrash(Patientceasestobeinfectiousoncelesionshavecrusted)
Measles 4daysbeforeto 5daysafterappearanceofrash(Highlyinfectiousduringprodromal stage&duringeruption,periodofcommunicabilitydecreasesafterrashappears)
Diptheria 14- 28daysfromdiseaseonsetRubella 1weekbeforeto1weekafterrashonset(Max.When
rashiserupting)Mumps 4- 6daysbeforeonsetofsymptoms&aweekthereafterInfluenza 1- 2before&1- 2daysafteronsetofsymptomsWhoopingcough
1weekafterexposureto3weeksafteronsetofparoxysmalstage(catarrhalstage) 11
PeriodofIsolation(v.v.imp)Disease DurationChickenPox 6daysafteronsetofrashMeasles Onsetofcatarrhalto3rd dayofrash/7days
afterrashonsetGermanmeasles None(exceptin1st trimester)Influenza 3daysafteronsetTB Until3weeksofchemotherapyCholera,Diptheria 3daysaftertetracyclinestartedtill48hoursof
antibioticsHerpes zoster 6daysafteronsetofrashMumps UntilswellingsubsidesPertussis 3to4weeksoruntilparoxysmsceaseMeningococcalmeningitis,Streptococcalpharyngitis
Until1st 6 hoursantibioticscompleted
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GastroIntestinalInfections:CommonFeatures
• Modeoftransmission:contaminatedwater,food&drinks
• Periodofisolation:
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Disease DurationCholera,Diptheria 3daysaftertetracyclinestartedtill48hours
ofantibiotics(7- 10days)Shigella,Salmonella Until3 consecutivenegativestoolculturesHepatitis A 3weeksPolio 2weeksadults,6weeks paediatric
Chemoprophylaxis(v.v.imp)
Disease ChemoprophylaxisCholera TetracyclineBacterialconjunctivitis ErythromycinDiptheria ErythromycinInfluenza AmantadineMalaria < 6weeks(doxycycline,chloroquine),
>6weeks(mefloquine)Meningococcalmeningitis Cipro,minocyclinePlaque Tetracycline
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HYDERABAD: 20-23 MARCH
DELHI : 2-5 APRIL
NAGPUR : 9-11 APRIL
CALL 8699014009, 9914619911