Dengue Situation Updates
as of 13 November 2013
Regional dengue activity is variable. Australia, Lao PDR, Malaysia, Singapore and New Caledonia have reported more cases in 2013 than 2012 for the same time period. The recent trend has increased in Malaysia and Viet Nam. The recent trend continued to decrease in Australia, Cambodia, Lao PDR and Singapore, and has declined to low levels in New Caledonia. French Polynesia, however, continues to report dengue activity.
Australia: The monthly trend continued decreasing from September to October 2013. 76 cases were reported for the month of October 2013, compared to 81 cases in October 2012. There were 1543 cases reported up to end of October in 2013.
Cambodia: The weekly trend continued to decrease based on the three week moving average. 137 cases were reported in the week 25 September to 1 October 2013 compared to 1 006 cases in the same week for 2012. There were 15 193 cases (45 deaths) reported up to 1 October in 2013.
China: Since the dengue outbreak was first reported 15 Aug 2013 in Xishuangbanna, Dai Autonomous Prefecture, south Yunnan Province, a total of 1261 dengue fever cases, including 1242 locally transmitted cases and 19 imported cases, have been reported as of 21 Oct 2013. Number of cases has declined, however, and total of 1230 cases have recovered, with no deaths. Several areas of Xishuangbanna have not reported any new cases since early October. With no further spread and the decline in the situation, the dengue outbreak in Yunnan is considered under control.
Lao PDR: The weekly trend continued to decrease based on the three week moving average. 146 cases were reported from 26 October to 1 November 2013 compared to 308 cases in the same period for 2012. 43 620 cases (95 deaths) were reported up to 1 November in 2013.
Malaysia: The weekly trend increased based on the three week moving average. 1 547 cases were reported in the week of 27 October to 2 Novermber 2013 compared to 421 cases in the same period for 2012. 29 754 cases (61 deaths) were reported up to 2 November in 2013.
Philippines: The weekly trend decreased based on the three week moving average. 154 833 cases (545 deaths) were reported up 19 October in 2013.
Singapore: The number of cases remained above the epidemic threshold and the weekly trend increased based on the three week moving average. 459 cases were reported in the week of 27 October to 2 November 2013 compared with 104 cases for the same period in 2012. 19 099 cases were reported up to 2 November in 2013.
Viet Nam: Up to 20 September in 2013, there have been 44 085 cases (26 deaths) reported compared to 57 301 cases (43 deaths) for the same period for 2012. There were 8 386 cases (2 deaths) reported from 1 to 20 September 2013.
New Caledonia Weekly trend continued to remain low. 1 case was reported during 22 October to 11 November 2013. 10 538 cases were reported up to 11 November in 2013.
Solomon Island As of 2 August 2013, there were 6 733 cases reported (142 additional cases reported in the past 2 weeks) with 8 deaths; While dengue is still circulating in some provinces, cases have declined in the past 2 months . Unless there is a change in the situation, this will be the last update on this dengue outbreak. For further information on the outbreak in Solomon Islands, refer to the outbreak report communicated through the Western Pacific Surveillance and Response Journal, “Ongoing outbreak of dengue serotype-3 in Solomon Islands, January to May 2013”:
French Polynesia continues to report dengue and monthly number of cases increased from 128 in August to 148 in September, and so far up to 29 October, 299 cases. As of 31 October, there have been a total of 870 cases since February 2013.
Chikungunya Update (As of 2 October 2013)
In recent times, the Western Pacific Region has been experiencing increased reports of chikungunya. In Singapore, 704 cases have been reported up to 21 September in 2013 relative to 9 cases for the same time period in 2012; weekly trend has been increasing for the last several weeks, with 49 cases reported during 15-21 September 2013. In Cambodia, chikungunya reemerged and was detected February-March 2012, soon to be followed by the detection and report of chikungunya for the first time in neighboring Lao PDR, May- September 2012 (see WPSAR: http://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/192/252).
In the Oceania region, since chikungunya was reported February-June 2011 in New Caledonia, Papua New Guinea has reported a large outbreak in June 2012 (see WPSAR: http://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/96/287). In Australia, 107 cases were reported up to 30 September in 2013 relative to 9 in 2012 and 27 in 2011 for the same time period; currently, however, the trend in number of reported cases have been decreasing (18 cases in July, 8 cases in August and no cases reported in September 2013).
For further information on the dengue situation or its surveillance, please visit the following links:
- New Caledonia
- Pacific Islands and Territories