Sri Lanka is under the grip of a severe epidemic of Dengue fever and Dengue haemorrhagic fever. The enemy is the dengue virus and not the mosquito. In order to eliminate dengue, we need to eliminate the virus. The mosquito only “transports” the virus acquired from a dengue patient.
Therefore, the correct strategy is to isolate the dengue patient from mosquito bites. 50% isolation will eliminate dengue in 4 months.
Lanka is under the grip of a severe epidemic of Dengue fever and Dengue
haemorrhagic fever. The epidemic did not
happen over a short period. Dengue has been in Sri Lanka since 1962. However,
it was not a major public health problem. The disease was progressing at a very
low rate. Since about 2004, the numbers of cases started going up every year
and accelerated dramatically from about 2008.
authorities have not been idle during this period. A dengue control programme has been in
operation throughout. In recent years, there has been a National Dengue Control
programme involving most government departments, the police and even the armed
forces, coordinated at the highest level.
Graph 2 shows their efforts have not been in vain. The Breteau Index (BI) which
is an index of the presence of mosquito breeding sites have continued to fall
until 2012. It would be even lower now, 5 years later. But during the same
period the dengue cases continued to rise (r…