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1 PUBLIC HEALTH WEEKLY REPORT, KCDC Laboratory prevalence of norovirus infections in Korea and sensitive monitoring system for norovirus related outbreak combined automated diagnostic process and web-based reporting Public Health Weekly Report, KCDC229

2 Table 2. The incidence of norovirus related outbreaks among foodborne outbreaks in Korea ( ) Total foodborne outbreaks Norovirus related foodborne outbreaks Year No. of No. of No. of patients No. of No. of No. of patients outbreaks patients per outbreak outbreaks patients per outbreak , , Table 1. The results from K-EnterNet, nationwide surveillance for infectious gastroenteritis ( ) Year Microbial agents of infectious gastroenteritis (Detection rate) Bacteria Viruses Protozoa % 16.7% 1.1% % 21.1% 1.9% % 21.8% 1.8% %* 23.2% 1.6% The number of detection target enteric bacteria was reduced from 10(until 2007) to 5 in Figure 1. The prevalence of 5 gastroenteritis viruses including norovirus, group A rotavirus, enteric adenovirus, and astrovirus, and sapovirus among patients detected gastroenteritis viruses ( ) 230 Public Health Weekly Report, KCDC

3 Figure 2. Monthly distribution of norovirus related foodborne outbreaks in Korea ( ) Figure 3. The schematic flow for K-CaliciNet (real time molecular epidemiology for norovirus circulating in Korea for tracking related outbreaks) Public Health Weekly Report, KCDC 231

4 Table 3. Cumulative number of norovirus strains circulating in Korea collected in the database through K-CaliciNet ( ) Criteria Sporadic cases Outbreaks Subtotal No. of analyzed DB of norovirus Subtotal 1,614 3,599 5, ,796 4,186 5,982 Recent prevalence of clonorchiasis in some riverside regions of Korea 232 Public Health Weekly Report, KCDC

5 Figure 1. The surveyed areas and 4 major rivers located in southern part of Korea. Public Health Weekly Report, KCDC 233

6 Table 1. Results of stool examination according to administrative regions Locality a) No. of exam. No. of positive cases by parasite Cs Ht Es Tt Al Gl E sp. Etc Total No. of positive (%) 1 1, (37.5) (35.3) (19.9) 4 1, (9.5) (28.0) 6 1, (16.0) (15.2) 8 1, (12.0) 9 1, (8.9) 10 1, (13.7) 11 1, (8.1) (23.1) 13 1, (20.2) (15.7) 15 1, (13.2) 16 1, (9.1) 17 1, (6.9) 18 1, (6.7) (16.0) (4.9) (4.0) (3.4) 23 1, (0.9) Total 24,075 2, ,441 (14.3) Cs; Clonorchis sinensis, Ht; Heterophyids, Es; Echinostomes, Tt; Trichuris trichiura, Al; Ascaris lumbricoides, G; Giardia lamblia, E sp.; Entamoeba. Locality designated in Figure Public Health Weekly Report, KCDC

7 Table 2. Positive rates of Clonorchis sinensis eggs according to riversides, localities and sexes Riversides Localities a) No. of exam. No. (%) of positive cases by sex Male Female Total (%) Nakdong-gang (River) Seomjin-gang (River) Youngsan-gang (River) Geum-gang (River) 1 1, (30.6) (27.9) (17.3) 4 1, (8.1) (26.7) 6 1, (13.0) (13.5) 8 1, (10.4) 9 1, (7.4) Subtotal 9, ,566 (17.1) 10 1, (10.6) 11 1, (6.5) (11.4) 13 1, (15.3) (13.3) Subtotal 5, (11.2) 15 1, (3.6) 16 1, (7.5) 17 1, (4.9) 18 1, (5.4) Subtotal 4, (5.5) (13.9) (3.2) (3.2) (2.4) 23 1, (0.4) Subtotal 4, (4.6) Total (%) 24,075 1,510 (6.3) 1,151 (4.8) 2,661 (11.1) Locality designated in Figure 1. Table 3. Number of egg positive cases of Clonorchis sinensis according to riversides and age groups No. (%) of cases by age group Area Total Total(%) < < NK a) Nakdong-gang 9, ,566 (17.1) Seomjin-gang Youngsan-gang Geum-gang Total (%) 5, (11.2) 4, (5.5) 4, (4.6) 24, (0.08) 29 (0.1) 68 (0.3) 332 (1.4) 620 (2.6) 891 (3.7) 525 (2.2) 79 (0.3) 97 (0.4) 2,661 (11.1) NK; Not exactly known. Public Health Weekly Report, KCDC 235

8 236 Public Health Weekly Report, KCDC

9 An anaylsis of varicella incidence in Korea, spring 2009 Figure 1. Weekly distribution of varicella cases reported via pediatric sentinel surveillance, Public Health Weekly Report, KCDC 237

10 Figure 1. The weekly proportion of influenza-like illness visits per 1,000 patients, season season Figure 2. The number of influenza virus isolates, season Figure 3. Viral hepatitis A status through NNDSS, 2009 Figure 4. Viral hepatitis A status through NNDSS All Causes 258* P&I * Mortality data in this table are voluntarily reported from 20 hospitals, which of total discharged patients in 13th week, 2009 are 16,663. A causes of death are defined from death certificates. Fetal deaths are not included. Pneumonia and influenza (KCD code J09-J18). 238 Public Health Weekly Report, KCDC

11 Cholera Plague - Typhoid fever Paratyphoid fever Shigellosis EHEC Diphtheria - Pertussis Tetanus Measles Mumps ,542 4,557 2,089 1,863 1,744 Rubella Poliomyelitis - Japanese encephalitis Varicella 547 6, ,849 20,284 11,027 1,934 - Malaria ,052 2,227 2,051 1, Scarlet fever Meningococcal meningitis Legionellosis Vibrio vulnificus sepsis Epidemic typhus - Murine typhus Scrub typhus ,057 6,022 6,480 6,780 4,698 Leptospirosis Brucellosis Anthrax - Rabies 1 HFRS Dengue fever Indonesia(2) Leishmaniasis 1 Babesiosis Cryptosporidiosis Botulism Q fever Tuberculosis 715 8, ,157 34,710 35,361 35,269 31,503 HIV/AIDS : No reported cases. N : Not notifiable. Cum: Cumulative counts of the year from 1st week to current week. EHEC : Enterohemorrhagic Escherichia coli. HFRS : Hemorrhagic fever with renal syndrome. * Incidence data for reporting years 2008 and 2009 are provisional, whereas data for 2004,2005,2006 and 2007 are finalized. * Reported cases contain all case classifications (Confirmed, Suspected, Asymptomatic carrier) of the disease respectively. Excluding Hansen's disease and diseases reported through the Laboratory Surveillance System and Sentinel Surveillance System(Data for Sentinel Surveillance System are available in Table III) and no case reported since 2003(Yellow fever, Marburg fever, Ebola fever, Lassa fever, African Trypanosomiasis, Schistosomiasis, Yaws, Pinta, Smallpox, Severe Acute Respiratory Syndrome, Avian influenza infection and humans, Tularemia, and Newly everging infectious disease syndrome) Calculated by summing the incidence counts for the current week, the 2 weeks preceding the current week, and the 2 weeks following the current week, for a total of 5 preceding years.(in case of Varicella, used data for 3 years-2006,2007 and 2008, because of being designated as of July 13, 2005) HIV/AIDS is infected cases but not disease cases. Public Health Weekly Report, KCDC 239

12 Total Seoul Busan Daegu Incheon Gwangju Daejeon Ulsan Gyonggi Gangwon Chungbuk Chungnam Jeonbuk Jeonnam Gyeongbuk Gyeongnam Jeju : No reported cases. Cum: Cumulative counts of the year from 1st week to current week. * Incidence data for reporting years 2008 and 2009 are provisional, whereas data for 2004, 2005, 2006, and 2007 are finalized. Reported cases contain all case classifications (Confirmed, Suspected, Asymptomatic carrier) of the disease, respectively. Calculated by averaging the cumulative counts from 1st week to current week, for a total of 5 preceding years. Public Health Weekly Report, KCDC 240

13 Total ,574 3, Seoul Busan Daegu Incheon Gwangju Daejeon Ulsan Gyonggi , Gangwon Chungbuk Chungnam Jeonbuk Jeonnam Gyeongbuk Gyeongnam Jeju unknown : No reported cases. Cum: Cumulative counts of the year from 1st week to current week. * Incidence data for reporting years 2008 and 2009 are provisional, whereas data for 2004, 2005, 2006, and 2007 are finalized. Reported cases contain all case classifications (Confirmed, Suspected, Asymptomatic carrier) of the disease, respectively. Calculated by averaging the cumulative counts from 1st week to current week, for a total of 5 preceding years. (In case of Varicella, used data for 3 years , 2007 and 2008, because of being designated as of July 13, 2005) Public Health Weekly Report, KCDC 241

14 Total ,924 7,816 Seoul ,479 2,191 Busan Daegu Incheon Gwangju Daejeon Ulsan Gyonggi ,192 1,215 Gangwon Chungbuk Chungnam Jeonbuk Jeonnam Gyeongbuk Gyeongnam Jeju : No reported cases. Cum: Cumulative counts of the year from 1st week to current week. * Incidence data for reporting years 2009 are provisional, whereas data for 2004, 2005, 2006, 2007 and 2008 are finalized. Reported cases contain all case classifications (Confirmed, Suspected, Asymptomatic carrier) of the disease, respectively. Calculated by averaging the cumulative counts from 1st week to current week, for a total of 5 preceding years. Public Health Weekly Report, KCDC 242

15 : No reported cases. Cum: Cumulative counts of the year from 1st week to current week. * Incidence data for reporting years 2008 and 2009 are provisional. Reported cases contains all case classifications (Confirmed, Suspected, Asymptomatic carrier) of the disease, respectively. Calculated by averaging the cumulative counts from 1st week to current week, for a total of 5 preceding years. Public Health Weekly Report, KCDC 243

16 PUBLIC HEALTH WEEKLY REPORT, KCDC

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@12호-end2 PUBLIC HEALTH WEEKLY REPORT, KCDC www.cdc.go.kr/phwr Revised national tuberculosis control programme in Korea Figure 1. Trend of new tuberculosis case notification rate 1) Case notification rate= Total