Chikungunya in Singapore - latest from MOH

The latest MOH figures for chikungunya in January 2009 has been released.

In January alone we've had 160 new cases detected with only 10 positively identified as being imported cases, i.e. ~93% of cases are locally transmitted. Good news is that over the last week of January, the incidence dropped to 17 cases (only one imported).

It seems pretty clear that the disease has become quite endemic and the infectious clusters are being maintained by a local reservoir of the virus.

Following data from MOH weekly update. I found it quite curious that NEA, after a flurry of updates in first half of 2008, has become deathly silent about this...and there has been only one update since September 2008.

Active Clusters with 10 or more cases

Cluster Name (Number of cases)
Sungei Kadut (59)
Jalan Papan (49)
Tanjong Kling Road (44)
Leedon Heights (13)
Swiss Club Road (12)

Active Clusters with less than 10 cases

• Penjuru Road
• Jalan Samulun
• Woodlands Industrial Park
• Kian Teck Crescent
• Bukit Batok Crescent
• Cluny Road
• Balmoral Road
• Cedarwood Grove
• Jalan Rumah Tinggi
• Queen Astrid Park
• Ubi Crescent
• Pandan Loop