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13.10.01
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Preliminary results on Influenza surveillance activities in Dornogoviprovince and Baganuur district of Ulaanbaatar city,
2012‐2013 season
А. Burmaa1, T.Kamigaki3, G.Nyama1, Ch.Maitsesteg1, P.Nymadawa1, 2, H.Oshitani3
1National Center of Communicable Diseases, Ministry of Health, Mongolia2Mongolian Academy of Medical Sciences
3Department of Virology, Tohoku University Graduate School of Medicine, Sendai, Japan;
Presenter: А. BurmaaNCCD
Study sites
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Background
1. Influenza surveillance sentinel sites2. Surveillance data on ILI and sARI in previous
seasons3. Study result on A(H1N1)pdm influenza pandemic
data in Mongolia (Likely effectiveness of pharmaceutical and non‐pharmaceutical interventions for mitigating influenza virus transmission in Mongolia; KJ Bolton,a JM McCaw,a R Moss,a RS Morris,b S Wang,b A Burma,c B Darma,c D Narangerel,d P Nymadawac & J McVernona);
Академич П.Нямдаваа 4
1. Influenza Surveillance network in Mongolia: since September 2009
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2.
3.
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Objectives
1. To monitor the trend of influenza activities at Baganuur district level and to investigate the role of preschool and school children in the community transmission of influenza;
2. To study the association between influenza transmission and travelling inhabitants in Sainshand and Zamyn‐Uud;
Study period:October, 2012 to May, 2013
Study design:Community based cohort study
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Study methods:
ILI:Enrolling cases are defined as those who develop any two conditions; sudden onset, fever up >37.8C (or feverish but required BT>37.0 at consultation), sore throat, cough, running nose.sARI:(ILI case definition + difficulty of breathing, condition requires for the admission) After judging case enrollment with clinical case definitions,
clinicians in charge fulfill the simplified questionnaire to collect the data from the ILI and sARI cases.
Sample collection and transportation to the VL, NIC.
Study methods
Laboratory
1. Rapid immunochromatography testing;
2. (rt‐RT‐PCR) testing;
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Study methods
• Rapid kits will be used for each ILI and sARI case(BND, “Bivaangird”, Sainshand, “Talst zam” FGPs, Sainshand and Zamyn‐Uud hospitals);
• If there are clusters or 3 and more ILI cases in the following 2 days (other FGPs in BND and Sainshand );
• Sample extraction solutions will be preserved in the refrigerator and transport to NIC of Mongolia for further genetic analysis;
№ Province/district name
Units Number of
outpatient/inpati
ent visits
Number of
ILI/sARI cases
Conventional method
Rapid test
Number of
tested samples
Number of
positive samples
Number of
tested samples
Number of positive samples
1Baganuur
4 FGPs 51011 1191(2.3%)
150 28(18.7%)
322 38(A)(11.8%)
Districthospital
3891 567(14.6%)
33 7(21.2%)
15 0
2Sainshand
4 FGPs 35277 1918(5.4%)
168 29(16.9%)
383 95(A)(14.6%)
ProvinceHospital
4581 906(19.8%)
82 20(26.0%)
222 69(A)(31.2%)
3 Zamyn-Uud
SoumHospital
1081 199(18.4%)
20 2(10.0%)
196 2(A)(1.0%)
453 86 1138 204
Preliminary results…
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Number of influenza positive samples (by sentinel sites)
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Number of influenza positive samples (by ages)
Conclusions
• In Mongolia including the study areas ILI activity was a relatively mild in the past influenza season and was dominated by influenza A (H3N2) viruses but in Sainshandsoum of Dornogovi province were co‐circulating influenza pandemic A(H1N1)pdmviruses.
(Data analyses are continuing…)
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Acknowledgements
• We thank: • The surveillance teams, involving in Influenza Surveillance Network in Sainshand and Zamyn‐Uud of Dornogovi province and Baganuur district, Ulaanbaatar city for kindly providing epidemiological and virological surveiilance data;
• Collegues and collaborators, Department of Virology, Tohoky University, Sendai, Japan; Department of Surveillance and Research of Infectious Diseases; Virology Laboratory, NIC, NCCD, Mongolia;
Анхаарал тавьсанд баярлалаа
Анхаарал тавьсанд баярлалаа