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Taking a Meaningful Clinical History

A student is often tempted to quickly move on to examination after listening to the presenting complaints.
Clinical history taking should not be taken lightly.
A logically taken history will give rise to a list of probable diagnoses in your mind by identifying patterns of symptoms even before you proceed on to the examination.
Systematically taken history will guide you to:
• Look especially for signs for confirming or ruling out certain disorders upon physical examination and

Mechanism (in brief) of transmission of vectors borne disease

1. Mechanical: infectious agent is mechanically transported through soiling of vector’s feet or proboscis or by passage through its gastrointestinal tract. for example spread of e coli by housefly
2. Biological:
a. Propogative: infectious agent merely multiplies inside the vector e.g. plague in rat flea
b. Cyclo-propogative: agent changes in number and also in form e.g. malaria parasites in mosquito
c. Cyclo-developmental : the disease agent undergoes only development but no multiplication e.g. microfilaria in mosquito

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