BRAZZAVILLE, 1 July 2011 (IRIN) - An epidemic of Chikungunya, a mosquito-borne viral disease, which began in early June in Congo's capital Brazzaville, has spread to the neighbouring Pool region, according to the World Health Organization (WHO).

Between 1 and 23 June, there were 7,014 cases in Brazzaville and 460 in Pool, but no deaths, according to WHO. In Pool, which endured a series of civil wars between 1998 and 2003, damaging the local health infrastructure, only the towns of Goma Tse Tse and Kinkala, the regional capital, are affected.

In Brazzaville, the disease is concentrated in southern districts, including Makélékélé and Bacongo.

The disease's symptoms include muscle pain, headache, nausea, fatigue and rash, and are similar to those of dengue fever. There is no known cure; treatment consists of relieving the symptoms.

"Today we find that Chikungunya is a problem for the city," Alexis Elira Dokekias, director-general of health, told IRIN. "There are patients who complain of Chikungunya symptoms, but do not show up in hospitals. These are hard to track... What is encouraging is the fact that we have not seen any deaths. Patients who show up are treated properly because the drugs are available."

Health Ministry specialists have identified the aegypti and albopictus mosquito species as being responsible for the outbreak. Chikungunya was first confirmed after an analysis of samples by the Franceville laboratory in Gabon.

To counter the disease, the authorities are urging people to clean up possible breeding sites such as old containers, tyres or empty cans.

The spraying of insecticides to kill the mosquitoes would begin "next week", said Dokekias.

Source: The Integrated Regional Information Networks (http://www.irinnews.org )

Mosquitoes are a vector agent that carries disease-causing viruses and parasites from person to person without exhibiting symptoms themselves.  While it's no relation to the standard barfly, the Asian Tiger mosquito is the true invasive species of urban mosquito tormenting large cities.   Here's what you should fear: the Asian Tiger mosquito can distribute the potentially terminal disease known as dengue fever.  Urban bloodletting: Beware the Asian Tiger mosquito.  The principal mosquito borne diseases are the viral diseases yellow fever, dengue fever and Chikungunya, transmitted mostly by the Aedes aegypti, and malaria carried by the genus Anopheles.  These combination strategies are really of great help to fight mosquitoes and prevent diseases to occur.