Infectious Diseases — Flashcards

Flashcard 51: flea index in area should be _____ within 48 hrs of spray of DDT

Answer: <1

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Flashcard 52: The **extrinsic** incubation period (in the sandfly) for leishmaniasis is _____

Answer: 1-2 weeks

Extra: The vector for leishmaniasis is the female sandfly (*Phlebotomus* species). - **Extrinsic incubation period** (in vector): 6-10 days (approx. 1-2 weeks). - **Intrinsic incubation period** (in human): 1-4 months.

Flashcard 53: _____ is the maintenance host for japanese encephalitis

Answer: egret bird

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Flashcard 54: Period of communicability (POC) of pertussis is _____

Answer: from 1 week after exposure until 3 weeks after onset of the paroxysmal stage

Flashcard 55: IP of bubonic/septicemic plague is _____

Answer: 2-7 days

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Flashcard 56: 1. Identify → _____ 2. Habits → _____ 3. Spreads → _____

Answer: Culex Mosquito

Flashcard 57: SAR of influenza is _____% in non immune

Answer: 50-60

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Flashcard 58: 1. Identify the instrument → _____ 2. Mention two uses → _____

Answer: Tuberculin Syringe

Extra: The Tuberculin syringe is a 1 mL syringe calibrated with 0.01 mL graduations, allowing for precise measurement of small volumes. It is used for intradermal injections such as the Mantoux test (PPD) and BCG vaccination.

Flashcard 59: 1. Identify → _____ 2. Features → _____ 3. Spreads → _____

Answer: Sandfly (Phlebotomine)

Extra: The Sandfly (Phlebotomine) is the vector for Leishmaniasis (Kala-azar and Oriental Sore) and Sandfly fever. Key morphologic features include its small size (about 1/4th of a mosquito), hairy body, and wings held at a 45-degree angle (lanceolate shape).

Flashcard 60: KFD is spread by _____ vector

Answer: hard tick

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