L7 Surveillance, control and eradication Flashcards Preview

Epidemiology > L7 Surveillance, control and eradication > Flashcards

Flashcards in L7 Surveillance, control and eradication Deck (16):

what is surveillance?

systematic collection, collation AND analysis of info related to animal health AND timely dissemination


how is surveillance different to monitoring?

action is taken when surveillance reaches a certain disease threshold


list four factors outline the importance of surveillance

- detect emerging disease
- demonstrate disease free status to trading partners
- meet international reporting requirements
- plan implement


what are the 8 components of survaillance

1. clearly define objectives
2. hazard or health state under surveillance
3. case definition
4. target population defined
5. timing of sampling
6. data management
7. method for data analysis AND TRIGGER FOR ACTION
8. feedback and dissemination of results


notifiable diseases are an example of surveillance, what are the types of diseases that are considered notifiable?

- emerging diseases
- zoonotic diseases
- transboundary diseases


list the eight types of surveillance systems?

- active
- passive
- targeted
- scanning
- risk based surveillance
- syndromic
- sentinel
- participatory


describe an active surveillance system what do they include?

- main users of the info make active efforts to collect data
include: surveys, meat inspection, diagnostic lab reporting


describe a passive surveillance system

- main users of the info make no action to initiate the collection of data, makes use of secondary data


describe scanning surveillance

"keeps finger on the pulse"
monitors an animal population to detect the undefined and unexpected


describe targeted surveillance

answers a specific question about a defined disease or condition to be detected


describe risk based surveillance

preferential surveillance for hazards, testing in sub populations that have a higher risk of having disease
eg/ Highly pathogenic avian influenza in bhutan


describe syndromic surveillance

automated data acquisition and generation of statistical alerts to monitor disease in real time eg/ google flu search


describe sentinel surveillance provide e.g.

use of sentinel flock/herd regularly tested for antibody to disease.
sentinel usually free of disease
if test positive then you know dx is circulating
eg/ victorie arboviral disease control program - bled regularly, strategically placed where the arthropods are around the murray river.


describe participatory surveillance, provide e.g.

form of active surveillance
relies on community consultation
eg/ community interview, probing, transect mapping
HPAI in indonesia/ if there is an outbreak in a given area conduct interviews w/ participants volunteering info

sorry G this was the most vague af flash card, i gave up lol


characteristics of a GOOD surveillance system

- useful
- simple
- flexible
- sensitive
- predictive
- representative
- timely
- efficient


what are all surveillance systems limited by?