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Rickettsial diseases

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Saleem sayed

Rickettsial diseases presentation for spm/psm 3rd mbbs (Final MBBS part-1) , under graduate level students.

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RICKETTSIAL ZOONOSES Saleem Sayed, Final year part-I. NIMRA INSTITUTE OF MEDICAL SCIENCES Saleemsayed092@gmail.com
Rickettsial diseases
Rickettsial diseases ? Group of specific communicable diseases. Caused by :Rickettsial organisms. Transmitted to man by : Arthropod vectors.
Diagnosis ? These are under-diagnosed and they contribute to the.. Acute febrile illness (Rapid onset of fever)
CLASSIFICATION
INDIAN TICK TYPHUS AGENT :caused by Rickettsiaconorii. RESERVOIR OF INFECTION: The tick is the reservoir of infection (infective at all stages of its life cycle) VARIOUS TICK GENERA: Rhipicephalus, Boophilus, Haemaphysalis.
MODE OF TRANSMISSION : Acquires infection by bite of an infected tick. Contamination of skin with crushed tissues Faeces of an infected tick. INCUBATION PERIOD:3-7 days. CLINICAL FEATURES : Acute onset of fever, Headache & Malaise . *A maculopapular rash appearson the 3rd day. *Clinical syndrome may be confusedwithatypical measles.
CONTROLL MEASURES: TREATMENT : Broad spectrum antibiotics. PERSONAL PROPHYLAXIS: Daily inspection of the body for ticks is important.
Q FEVER AGENT :caused by Coxiellaburnetti. RESERVOIR OF INFECTION: cattle ,sheep, ticks. Placenta of infected cows and sheep contains agent. MODE OF TRANSMISSION: 1. Inhalation of infected dust from soil (previously contaminated by urine and faeces) 2.Ingestion of contaminated meat and milk.
INCUBATION PERIOD:2-3 weeks. CLINICAL FEATURES : Acute onset of fever, chills, Headache & Malaise . *There will be no rash or local lesion. CONTROLL MEASURES: 1.TREATMENT :Prolonged treatment over 18 months *Doxycycline is the drug of choice.
Rickettsial diseases
RICKETTSIAL POX Man gets infection through bite of mites found on infected mice (Musmusculus) Rickettsial pox may be confused withatypical cases of chicken pox. TRENCH FEVER Limited to central europe. Vector is louse and transmitted by faeces of same.
RICKETTSIAL POX CHICKEN POX
Rickettsial diseases

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Rickettsial diseases

  • 1. RICKETTSIAL ZOONOSES Saleem Sayed, Final year part-I. NIMRA INSTITUTE OF MEDICAL SCIENCES Saleemsayed092@gmail.com
  • 3. Rickettsial diseases ? Group of specific communicable diseases. Caused by :Rickettsial organisms. Transmitted to man by : Arthropod vectors.
  • 4. Diagnosis ? These are under-diagnosed and they contribute to the.. Acute febrile illness (Rapid onset of fever)
  • 6. INDIAN TICK TYPHUS AGENT :caused by Rickettsiaconorii. RESERVOIR OF INFECTION: The tick is the reservoir of infection (infective at all stages of its life cycle) VARIOUS TICK GENERA: Rhipicephalus, Boophilus, Haemaphysalis.
  • 7. MODE OF TRANSMISSION : Acquires infection by bite of an infected tick. Contamination of skin with crushed tissues Faeces of an infected tick. INCUBATION PERIOD:3-7 days. CLINICAL FEATURES : Acute onset of fever, Headache & Malaise . *A maculopapular rash appearson the 3rd day. *Clinical syndrome may be confusedwithatypical measles.
  • 8. CONTROLL MEASURES: TREATMENT : Broad spectrum antibiotics. PERSONAL PROPHYLAXIS: Daily inspection of the body for ticks is important.
  • 9. Q FEVER AGENT :caused by Coxiellaburnetti. RESERVOIR OF INFECTION: cattle ,sheep, ticks. Placenta of infected cows and sheep contains agent. MODE OF TRANSMISSION: 1. Inhalation of infected dust from soil (previously contaminated by urine and faeces) 2.Ingestion of contaminated meat and milk.
  • 10. INCUBATION PERIOD:2-3 weeks. CLINICAL FEATURES : Acute onset of fever, chills, Headache & Malaise . *There will be no rash or local lesion. CONTROLL MEASURES: 1.TREATMENT :Prolonged treatment over 18 months *Doxycycline is the drug of choice.
  • 12. RICKETTSIAL POX Man gets infection through bite of mites found on infected mice (Musmusculus) Rickettsial pox may be confused withatypical cases of chicken pox. TRENCH FEVER Limited to central europe. Vector is louse and transmitted by faeces of same.