DI
PHTHERIA
Acute pharyngitis, nasopharyngitis with patches of adherent grayish “pseudomembrane” in the oropharynx
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Infectious Agent: Corynebacterium diphtheriae
Reservoir/Host: Humans
Mode of Transmission:
Airborne respiratory droplets
Direct contact with respiratory secretions
Exudates from infected skin lesions
Incubation period: 2-5 days, occasionally longer
Control and Prevention:
Define population at risk
Identity close contacts
Immunize the largest proportion of population or group involved
Repeat after one month.
Prevention:
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Proper disposal of feces and vomitus
Disinfection of linens and articles used by the patients
Surveillance of contacts for 5 days from last exposure. Chemoprophylaxis of household members with tetracycline for 5 days
Investigation of contacts and source of infection
Fluid therapy with volumes of electrolyte solution to correct dehydration
Immunization of contacts is not indicated.
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