Thailand:Avian Influenza surveillance in human(As at September 9, 2005)

Thailand:Avian Influenza surveillance in human(As at September 9, 2005)
submited by kickingbird at Sep, 13, 2005 16:37 PM from MOPH,Thailand

I. Avian Influenza in human situation 2005

Since January 1, 2005 to September 9, 2005, the Bureau of Epidemiology has received 949 cumulative reports, 65 provinces of influenza or pneumonia cases in Avian Influenza Surveillance Network from the Provincial Health Offices and Disease Prevention and Control Regional Offices. The resul601ts of preliminary investigation were summarized as follows:

No new confirm case.
New cases = 9; 3 provinces; Four cases each from Suphanburi and Kamphaengphet, and 1 from Angthong.
Case under investigation, either additional clinical information or past history of risk factors are needed = 8, 5 provinces; Four cases from Kamphaengphet, and 1 each from Sukhothai, Suphanburi, Angthong and Nakhonpathom. (Table 1)
Excluded cases, either the findings did not comply with the definitions or laboratory result revealed other causes : 941 cases.

II. Avian Influenza in human situation 2004

Confirmed cases by laboratory detection of Influenza A (H5N1).
Total = 17; recovered = 5 and deaths = 12
Probable case, because the signs complied with the definitions or died or respiratory failure or preliminary laboratory result.
revealed influenza group A infection = 1; death = 1
Suspected cases, which the signs complied with the definitions.
Total = 22; recovered = 13 and deaths = 9

III. Avian Influenza International Situation, www.who.int

· World Health Organization had reported H5N1 confirmed cases since 26 December 2004, to 5 Aug 2005 = 112, with 57 deaths in 4 countries; Vietnam = 90, with 40 deaths; Four confirmed dead cases from Cambodia; 17 cases with 12 deaths in Thailand; and one confirm dead case from Indonesia. (Table 2)

IV. Domestic Avian Influenza in poultry situation

Avian influenza in poultry situation on the Department of Livestock Development web site (www.dld.go.th) since July 1 to September 9, 2005; 3 provinces, 7 tambons, Kamphaengphet (4 tamboms), Sraburi (2 tambons), and Ayatthaya (1 tambon) were infected areas and the areas where 21 days of surveillance are not completed. The areas waiting for laboratory result = 12 provinces; 26 tambons.

Table 1 : Details of 8 cases under investigation.

No.	Sex	Age (yrs.)	Province	Contact poultry	Dead poultry	Contact pneumonia patient	Onset	Diagnosis	Laboratory result
1	F	29	Nakhonpathom	Yes	No	No	Sep 4, 2005	Pharyngitis	waiting
2	M	13	Sukhothai	No	No	No	Sep 5, 2005	Acute febrile illness	waiting
3	F	49	Suphanburi	No	No	No	Sep 5, 2005	Pneumonia	waiting
4	F	6	Angthong	No	No	No	Sep 2, 2005	Pharyngotonsilitis	waiting
5	M	70	Kamphaengphet	No	No	No	Aug 20, 2005	Pneumonia	waiting
6	F	50	Kamphaengphet	No	No	No	Aug 12, 2005	Pneumonia	waiting
7	F	44	Kamphaengphet	No	No	No	Aug 23, 2005	Pneumonia	waiting
8	F	66	Kamphaengphet	No	No	No	Aug 31, 2005	Other	waiting

Table 2 : Details of confirmed H5N1 cases.

Duration

Indonesia

Vietnam

Cambodia

Thailand

TOTAL

Case

Dead

Case

Dead

Case

Dead

Case

Dead

Case

Dead

26 December - 10 March 2004

0

0

23

16

0

0

12

8

35

24

19 July - 8 October 2004

0

0

4

4

0

0

5

4

9

8

16 December 2004 - 27 July 2005

1

1

63

20

4

4

0

0

68

25

Summary

1

1

90

40

4

4

17

12

112

57

*Patient definition:

Suspected : Individual who has body temperature >38°C and one of these symptoms; muscle pain, cough, breathing difficulty, or shortness of breath, or the physician suspicious of pneumonia or influenza plus history of direct contacting sick or dead poultry within the last 7 days or unusual dead of poultry in the village within the last 14 days,
Probable : suspected case with preliminary laboratory result of influenza A infection but strain not known either human or avian influenza yet or respiratory failure or dead,
Confirmed : suspected case with final laboratory result indicated influenza A (H5) of which is avian strain by PCR or by virus culture,
Excluded : any patient who is not compatible with the aforementioned definition or laboratory result proved to be other causes.
Being under investigation : any patient, whose additional data or information either clinical or contact history in risk area are needed before any conclusion could be made.

See Also:

http://thaigcd.ddc.moph.go.th/AI_case_report_050909.html

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