Thailand:Avian Influenza surveillance in human

Avian Influenza surveillance in human
As at September 24, 2004.

Bureau of Epidemiology, Department of Diseases Control, Ministry of Public Health


         Bureau of Epidemiology on September 24, 2004 at 6:00 P.M. had received the reports of 140 influenza or pneumonia patients from 31 provinces in the avian influenza surveillance network since 1 July 2004.  The preliminary investigation results summary are as follow:

    1. Seven new cases are reported today; Six cases are on investigate (Table 2) and one is defined as suspect case.
    2. One more suspect case reported today, The case is a male, 6 years old, His onset was on September 22, with fever and pneumonitis and has admitted for in treatment Kampangphet hospital. He is a son of suspect case who has admitted for in treatment in same hospital; hence, cumulative total of suspected cases are 5.
    3. Confirmed case is still one from Prachin Buri.

Table 1 : Number of reported cases by province and category.

 

Reported cases

Cummulative since July 1, 2004 by category* (case)

Provinces

On 24 Sep. 04

On investigate*

suspected

probable

confirmed

excluded

Total

 Northern part

             

 Chiang Rai

0

0

0

0

0

8

8

 Phisanulok

0

0

0

0

0

2

2

 Lam Pang

0

0

0

0

0

1

1

 Nakhon Sawan

1

1

0

0

0

4

5

 Uthai Thani

0

0

0

0

0

3

3

 Sukothai

0

0

0

0

0

6

6

 Uttaradit

0

0

0

0

0

1

1

 Kampaeng Phet

2

1

4

0

0

1

6

 Central part

             

 Bangkok Metropolis

1

1

0

0

0

8

9

 Nontha Buri

0

0

1

0

0

1

2

 Phra Nakhon
   Si Ayutthaya

1

1

0

0

0

8

8

 Samut Prakhan

0

0

0

0

0

1

1

 Pathum Thani

0

0

0

0

0

3

3

 Ang Tong

0

0

0

0

0

1

1

 Saraburi

0

0

0

0

0

5

5

 Lop Buri

3

3

0

0

0

6

9

 Nakhon Nayok

0

0

0

0

0

2

2

 Prachin Buri

0

0

0

0

1

46

47

 Chon Buri

0

0

0

0

0

1

1

 Rayong

0

0

0

0

0

2

2

 Ratchaburi

1

1

0

0

0

2

2

 Nakhon Pathom

0

0

0

0

0

1

1

 Suphan Buri

0

0

0

0

0

4

4

 Prachuap Khiri Khan

0

0

0

0

0

1

1

 North-Eastern part

             

 Nong Khai

0

0

0

0

0

2

2

 Nong Bua Lam Phu

0

0

0

0

0

1

1

 Ubon Ratchathani

0

0

0

0

0

2

2

 Kalasin

0

0

0

0

0

1

1

 Loei

0

0

0

0

0

1

1

 Chaiya Phoum

0

0

0

0

0

2

2

 Southern part

             
 Songkhla

0

0

0

0

0

1

1

 Total

7

6

5

0

1

128

140

Note: Five cases are excluded today: Four cases: one each from Ratchaburi, Rayong, Prachin Buri and Pra Nakhon Si Ayutthaya, showed influenza A not H5; and one from Lopburi, showed no Avian influenza virus genetic material; hence, cumulative total of excluded cases are 128.

 

Table 2 : Six cases on investigate as at September 24, 2004 (10:01:27 P.M.)

No.

Sex

Age

Address

 Onset date

 Place of Treatment

 Diagnosis

1

Female

79

 Yannawa, Bangkok Metropolis  Sep 20, 2004  Samithivej Hosp.  Pneumonia

2

Male

31

 Baan Mee, Lopburi    Baan Mee  Fever

3

Male

15

 Baan Mee, Lopburi  Sep 16, 2004  Baan Mee  URI

4

Female

14

 Baan Mee, Lopburi  Sep 19, 2004  Baan Mee  Fever

5

Female

56

 Muang Nakhon Sawan, Nakhon Sawan  Sep 10, 2004  Sawanprachaluk  Pneumonia

6

Female

10

 Kosumpee Nakhon, Kampang Phet Sep 23, 2004  Kampang Phet  Influenza

 

Reports of Avian Influenza in poultry from Department of Livestock Development web site. (www.dld.go.th)

Since 3 July - 21 September, 2004 at 3:00 P.M.

1. Suspected areas of outbreak foci : 22 foci in 15 provinces.

2. Laboratory confirmed avian influenza outbreak area: 149 foci in 30 provinces;

    2.1 Northern part: Chiang Rai, Sukothai, Uttaradit, Nakon Sawan, Kampangphet, Uthaithani, Pitsanulok,  Pichit and Phetchaboon.

    2.2 Central part: Pathum Thani, Phranakhon Si Ayutthaya, Lop Buri, Sara Buri, Ang Tong, Suphan Buri, Bangkok Metropolis, Nonthaburi, Chainat, Chon Buri, Chachengsao, Nakon Nayok, Prachin Buri, Samut Prakhan and Rayong.

    2.3 North-Eastern part: Nong Khai, Khon Kaen and Loei.

    2.4 Southern part: Narathivas, Songkhla and Nakhon Si Thammarat.

3. At present, there were 55 foci of surveillance areas, and 116 foci in 27 provinces had complete 21 days of surveillance.

 

*Patient definition :

1. Suspect : 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,

2. Probable : suspect case with preliminary laboratory result of influenza A infection but strain not known either human or avian influenza yet  or respiratory failure or dead,

3. Confirmed : suspect case with final laboratory result indicated influenza A (H5) of which is avian strain by PCR or by virus culture,

4. Excluded : any patient who is not compatible with the aforementioned definition or laboratory result prove to be other causes.

5. On investigate* : any patient, whose additional data or information either clinical or contact history in risk area are needed before any conclusion could be made.