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An Outbreak of H5N1: Mae Fah Luang University Tawatchai Apidechkul,M.Sc. Dr.P.H. (Epidemiology) School of Health Science, Mae Fah Luang University, Thailand.

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Presentation on theme: "An Outbreak of H5N1: Mae Fah Luang University Tawatchai Apidechkul,M.Sc. Dr.P.H. (Epidemiology) School of Health Science, Mae Fah Luang University, Thailand."— Presentation transcript:

1 An Outbreak of H5N1: Mae Fah Luang University Tawatchai Apidechkul,M.Sc. Dr.P.H. (Epidemiology) School of Health Science, Mae Fah Luang University, Thailand

2 5/31/20142 Epidemiology Federal District of Mexico, surveillance began picking up cases of Influenza-Like Illness (ILI) starting 18 March April 2009, 854 cases of pneumonia, 59 had died. 24 April 2009, The United States Government had reported seven confirmed human cases of Swine Influenza A/H1N1 in the USA (five in California and two in Texas).

3 5/31/20143 Of the Mexican cases, 18 had been laboratory confirmed in Canada as Swine Influenza A/H1N1, while 12 of those were genetically identical to the Swine Influenza A/H1N1 viruses from California.

4 5/31/20144 The Swine Influenza A/H1N1 viruses characterized in this outbreak had not been previously detected in pigs or human.

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9 9 An Outbreak at MFU Early morning of 2 July 2009, the epidemiologist (Dr.Tawatchai Apidechkul) was called from the president of MFU to investigate and control the disease. About 100 cases were reported as respiratory tract infection. Severe cases were referred to Chiang Rai Center Hospital, to identify H1N.

10 5/31/ On 3 July 2009, 3 positive H1N1 PCR results were reported Immediate actions were taken to investigate and control this outbreak. On 4 July 2009, we began to investigate the outbreak by closely monitoring patients and seeking suspected cases on the University campus where 1,115 students occupied in 32 dormitories.

11 5/31/ Epidemiologist developed questionnaires based on MOPH ones to collect demographical and epidemiological data. Following control measures were implemented. Patients were treated with proper care (intensive care/isolated rooms). Tamiflu and influenza vaccine were stockpiled.

12 5/31/ Face masks were distributed. Housekeepers and students were provided with AVANTA® to disinfect areas of disease contamination in buildings and dormitories. Knowledge on influenza and personal hygiene were emphasized.

13 5/31/ Large social gatherings were canceled. Necessary activities were conducted in well- ventilated areas. Air conditioners were not operated. Patients and suspected cases were asked to wear face masks at all times and rest at dormitories; they were closely monitored after returning to classes.

14 5/31/ During 2-7 July 2009, 165 patients (16, 33, 36, 54, 24 and 2 cases on consecutive days) were reported with signs and symptoms related to a novel influenza A (H1N1). Major signs included cough (83.9%), fever (70.3%), muscle pain (28.9%) and diarrhea (4.2%).

15 5/31/ Mean age was 19.6 years (range years); 68.5% were females; 58.1% and 22.9% were the 1st and 2nd year students, respectively. Most patients were students in Law School (16.25%) and Liberal Arts School (12.50%).

16 5/31/ Six severe cases were admitted at Chiang Rai Regional Hospital, PCR positive with H1N1, and administered with Tamiflu. Attack rate was 89.7/1000 population.

17 5/31/ Influenza A (H1N1) were rapidly transmitted in air conditioned classrooms.

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22 5/31/ End Presentation!! But Disease Still Continue Epidemic!!!


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