The number of deaths caused by dengue has sharply dropped in the North Western Province due to the high quality health service offered to patients, Provincial Director of Health R M S K Ratnayake said.

Addressing a press briefing yesterday, he said health authorities cannot destroy all dengue breeding places and needs public support for it.

Ratnayake said there is a possibility of an increase in dengue patients with the prevailing weather conditions.

Anti-dengue operations have been intensified in Tirunelveli district even as the death toll mounted to 29. The outbreak of dengue, whose impact is seen in other southern districts, has put public health officials on their toes.

Director of Public Health R.T. Porkaipandian is in Tirunelveli with a team of officials to supervise the operations. In neighbouring Tuticorin district, four cases were under treatment at Tuticorin Medical College Hospital.

Lahore—The administration of Lahore General Hospital has launched a website regarding dengue awarness and control. Principal PGMI & LGH Prof. Tariq Salahuddin while presiding over a meeting, attended by MS. LGH Dr. Mohammad Hassan and senior professors, said that citizens could watch the website to get information and guidance regarding dengue. People can also contact senior doctors and professors through face book linked with the website in order to have consultancy, he said.

City District Government Lahore (CDGL) has taken all necessary steps for eradication of dengue and town administrations have been directed for the implementation of dengue regulations.According to a CDGL's spokesperson, notices are being issued to tyre shops and sprays are being done in tyre storehouses. DCO Lahore Ahad Khan Cheema had also directed the concerned town officers to take strict action against tyre shops owners for violating the dengue regulations. He said that the work is in process at union council level.

CHENNAI : As if the spurt of Dengue induced deaths in Tirunelveli region isn’t alarming by itself, the sheer number of cases recorded in 2012 is a shocker.

According to the health department, in just five months this year, there have been 1,632 cases of dengue recorded officially in Tamil Nadu. With over 21 people having already succumbed this year, this is much more than the eight deaths last year.

Dengue has claimed 55 lives. Nearly 1,500 dengue cases had been reported from all parts of the country during the past five months. The public should be vigilant about dengue mosquito breeding sites common in certain areas, a Health Ministry spokesman said.

According to the spokesman, a majority of mosquito breeding spots in the Colombo district are located in discarded receptacles.

"The most affected area is the Kalutara district is Walalawita where thousands of acres of godapara trees are located. Dengue mosquitoes breed in the leaves once they fall on to the ground.

Data on insecticide use for vector control are essential for guiding pesticide management systems on judicious and appropriate use, resistance management, and reduction of risks to human health and the environment. The researchers studied the global use and trends of insecticide use for control of vector-borne diseases for the period 2000 through 2009.

NewDelhi:Delhi is under attack from the Culex mosquito, persistent biters whose numbers are known to grow exponentially at dawn and dusk. Alarm bells were rung after a “very high density” of these mosquitoes was reported in the past two weeks. The spurt, reported by the National Vector Borne Disease Control Programme, made MCD call an emergency meeting on March 27 with officials from Delhi, Ghaziabad, Faridabad, Gurgaon and Noida. They plan to launch a massive exercise to cover open drains or “blast” them with the bio larvicide, BTI, with the help of pressure tanks.

Dengue is one of the most important mosquito-borne viral diseases in the world, and is endemic in approximately 120 countries. It has been estimated that there are 50–100 million cases of dengue fever and 3.6 billion people are at risk of infection. It is emerging and re-emerging in the tropics and currently poses the most significant arboviral threat to humans.

Aedes aegypti dispersion is the major reason for the increase in dengue transmission in South America. In Brazil, control of this mosquito strongly relies on the use of pyrethroids and organophosphates against adults and larvae, respectively. In consequence, many Ae. aegypti field populations are resistant to these compounds. Resistance has a significant adaptive value in the presence of insecticide treatment.

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