Epidemiology module of practical skills for mbbs student

ƒ Count current cases only: Include only those cases that occurred within the time frame specified for the VPD.

Report the occurrence of any unusual clustering of VPD cases or any death immediately by telephone, fax, email, special messenger etc. This verbal report must be followed by a written case based report.


Step 2: Compile data

In terms of passive surveillance, you need to know how many VPD cases are occurring and where they are occurring. The essential data you should receive from each reporting unit in the UIP report of all sub-centers/ PHCs is the number of cases and deaths of each of the targeted diseases counted during the reporting period.

In terms of active surveillance, additional information should include the:

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  ƒ Vaccination status of each case;
  
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  ƒ Name, age and sex of each case;
  
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  ƒ Date and place of onset of symptoms
  

Compile the data to describe the VPDs in terms of time, place and person. This can be done by tabulation or drawing of graphs, bar charts or maps. Table 10.1 describes the immunization status of measles cases (among infants older than 9 months of age) regarding a Measles outbreak in five SCs in a PHC.