WHAT IS EPIDEMIOLOGY ? - PowerPoint PPT Presentation

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WHAT IS EPIDEMIOLOGY ?

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Title: WHAT IS EPIDEMIOLOGY ? Author: Joey Lek Last modified by: iLLuSioN Created Date: 3/3/2003 2:53:39 PM Document presentation format: On-screen Show – PowerPoint PPT presentation

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Title: WHAT IS EPIDEMIOLOGY ?


1
???????????????????????? ????????????????????????
???????????? ?????
2
??????????????????
????????
??????????
???????
  • ?????????
  • ????? ???? ???????
  • ??????????????????????????
  • ???????????? ?????????????

3
?????????????
?????????????(study)??????????????????
??????? (occurence) ?????????
(distribution) ????????????????????????? (risk
factors) ?????????????????????????????? ????????
??????????????????? (preventioncontrol)
???? ????? ???????
4
??????
  • ?????????????????????????????????
  • ???????? ????????????????
  • ??????????????????????????????????????????????

5
Epidemiologic Triangle
Agent ?????????? ???? ???????? ..
Host ??
Environment ???????????
6
???????????????????????????????? Host - Agent -
Environment
Host ?????? - ????????? ?????? -
????????? ??????? ????? ???? ??? ?????????
????????????????? -
?????????????? - ????????????? -
??????????? ????????? ??????????????
?????????? Personal Hygine ?????
??????????????

7
Agent ?????????????
?????? - ??????????????????? , ???? , ????????
?????? - ?????????????????? -
?????????? - ?????????????????
8
Environment ???????????
- ????????? - ??????? ????? ??????? ????? -
????????????????
9
???????????????
1. ??????????????? (Person) ???? ???
????????? ????? ???????????????????????
??????????? ????????
10
2. ????????????????? (Place)
????????????? ???????????? - ????
????????????????????? ??????????????????????????
???????????????
11
3.?????????????? (Time)
????????????????? ????????????????
12
??????????????????
  • ?????????????????????????
  • ????????? SRRT
  • ??????????????????????
  • ?????????????????????
  • ???????
  • ????????? Newspaper, TV, Internet

13
??????????????????????????????????
  • ?????? ????????????????
  • ?????? ??????????
  • ??????????
  • ????????????????
  • ??????????????
  • ???????????????????
  • ????????????????????

14
Surveillance General principles
???????????????? ?????????????
Reporting Feedback
?????????????
?????????
????????
action
15
?????????????
  • ??????????? ??????????????????????????????????????
    ?????????? ????????? ??? ????????

???????????????
16
???????????????????????
  • ????????
  • ??? Median ???????????? ? ???????????????? 5
    ??????????

17
??????????????? 5 ?? ????????
????? ????????????????????????????????????????
????????????????
2550 2549 2548 2547 2546
?????? 10933 12202 10941 12306 12993
?????????? 10430 9610 11221 13823 11946
?????? 10540 11691 10002 13538 12270
18
Surveillance
Information for action
???????
???????
??????????????????
19
??????????????????????????????????????????????????

Emerging / Re-emerging diseases
1997 A 3-year old boy, case of Avian Flu (H5N1)
in Hong Kong alerted the public health people
around the world to start a full scale
investigation.
20
??????????
  • Endemic ?????????????????????????????
  • Epidemic Outbreak
  • Outbreak -gt ????????, ???????
  • Epidemic -gt ???????????
  • Cluster ???????????????????????????????????,
    ????, ???????
  • Pandemic ??????????????????????????????????,
    ??????????????????

21
????????????????
??????????????????????
?????????????????????
????????????????????????????????????
????? / ?????????????? ?????????????? ????????????
???? (Mode transmission) ????????????????????????
22
????????????
  • ?????????????????????????????????
  • ????????? (??????????) ?????? ??????????
    ????????????? logistics ???????????
    ??????????????? ???
  • ?????????? (????????) ?????? ????? ????????????
    ???????????? ????????????????? ???
  • ????? ???????????? ??????????????????
  • ????????????????????????????? ???? ????????????
    ?????????????????????????????? ??????????????????
  • ???????????????????????

23
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