Epidemiology animal disease

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pandemic, epidemic, outbreak, transmission of disease, how disease is transmitted, disease transmission, animal disease transmission, survelliance, survelliance of animal disease, typing methods, intervention in animal disease

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Epidemiology animal disease

  1. 1. b.stev Epidemiology animal disease
  2. 2. TRANSMISSION of DISEASE <ul><li>DIRECT CONTACT – touch : </li></ul><ul><li>wounds </li></ul><ul><li>mucous membranes </li></ul><ul><li>skin with blood/ bite / rub </li></ul><ul><li>nose to nose contact </li></ul>Pathogenic MICROBES infect a population of animals in a number of different ways OUTBREAK : analysis of the transmittance LISTED :
  3. 3. <ul><li>AEROSOL – droplets passed (cough/ sneeze/ urine) </li></ul><ul><li>ORAL – object contamined (H 2 O/ feed/ licking/ chew) </li></ul><ul><li>REPRODUCTIVE – mating & foetus </li></ul><ul><li>TRAFFIC – vehicle/ trailer carries infection </li></ul><ul><li>VECTOR BORNE – insect passes disease </li></ul><ul><li>ZOONOTIC – carried: animal to human </li></ul><ul><li>ENVIRONMENT – habitat is considered </li></ul><ul><li>FORMITE – an object passes from animal-animal </li></ul>(Iowa State University, 2008)
  4. 4. TRANSMISSION over large areas in a very short TIME can occur: MODERN TRANSPORT DEPENDENT of DISEASE PROPERTIES: TIME may lapse: 6/ 8 weeks OR much more before indication of the disease becomes obvious & diagnosis confirmed
  5. 5. OUTBREAK : a disease occurs more than expected in a time frame to a specific area EPIDEMIC : disease appears substantially more times than expected in a time frame at different locations – strains may vary. PANDEMIC : an outbreak is diagnosed over countries OR continent/s – strains may vary WHAT is AN (Wikipedia, 2008)
  6. 6. <ul><li>SURVELLIANCE: </li></ul><ul><li>records must be kept </li></ul><ul><li>immunisation plans </li></ul><ul><li>inoculation of animal/s </li></ul><ul><li>quarantines performed </li></ul><ul><li>migration of animal/s </li></ul><ul><li>occurrence of disease </li></ul><ul><li>- source of infection </li></ul><ul><li>- treatment method </li></ul>
  7. 7. areas of the DNA contain ,codes, that would differ if it is not a certain strain HOW IT IS DONE: Different STRAINS of a disease can be identified by the use of their DNA This is called: TYPING METHOD (Wikipedia, 2008) process: HOW > disease has spread & it’s origin can be better determined
  8. 8. INTERVENTION <ul><li>inform citizens & parties that require notification: </li></ul><ul><li>prevention measures that can be taken </li></ul><ul><li>signs to observe in the animal/s </li></ul><ul><li>disregard all intended stock movement </li></ul><ul><li>if possible : inoculation and quarantine </li></ul><ul><li>inspection & advice – VETINARIRIAN </li></ul>
  9. 9. NOTES on DISEASE: <ul><li>RISK to ALL health - till diagnosis </li></ul><ul><li>LOSS in production </li></ul><ul><li>NOT always preventable </li></ul><ul><li>cause of EMOTIONAL stress </li></ul><ul><li>COST in time/ money/ action </li></ul><ul><li>TIME required to replenish </li></ul><ul><li>CAREFUL observation at all times </li></ul><ul><li>contact the VET ; if in doubt </li></ul>
  10. 10. Bibliography Iowa State University. (2008). CFSPH – animal disease information . Retrieved September 30, 2008, from http://www.cfsph.iastate.edu /BRM/resources_list.htm Wikipedia. (2008). Multilocus sequence typing – wikipedia, the free encyclopedia . Retrieved September 30, 2008, from en.wikipedia.org/wiki/MLST - 37k -

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