A NEW SPECIES OF DENGUE VIRUS SPREADING MOSQUITO 'AEDES ALBOPICTUS'
beside "Aedes Egypti" has been discovered in Tamil nadu as per TOI
report given below.This Mosquito usually forest dwelling naturally
occuring mosquito hard to control has now invaded urban areas as we
are cutting forest to make cities or township.So now we have to see
that mosquito repellants are regularly fogged in our surrounding and
cleaness of drains and street are done regularly,Mosquito is present
in Mahagun and in Crossing even on 14-20th floor so it shows fogging
is not good at all and cleanness is not well maintained as claimed by
CSK or other maintenance society,
we have to caution them and ask more fogging as due to
construction collection of garbadge ,dust ,water and other raw
materials containing dust and water is widely prevalent in our society
leading to growth and survival of Mosquito
CHENNAI: Another mosquito species that carries the dengue virus has
been spotted in urban areas in the state, raising serious public
health concerns amid a sudden spike in cases of the debilitating
disease. Entomologists have reported the presence of equal numbers of
Aedes albopictus in cities, a species usually found in forests, in
addition to the Aedes aegypti that spreads dengue. There are
approximately 3,500 species of mosquitoes. Most of these are vectors,
or carriers, of pathogens that cause a variety of diseases including
malaria, dengue, chikungunya, Japanese encephalitis and filariasis.
Researchers at Centre of Disease in Medical Entomology (CDME) in
Madurai, an ICMR institute, say they have spotted an equally high
number of Aedes albopictus in cities across Tamil Nadu. "Aedes
albopictus was not uncommon, but today we see as many albopictus as
aegypti," said CDME director B K Tyagi. Albopictus, also known as the
Asian Tiger Mosquito, was till recently found only in forests, in
bamboo stumps and tree holes. But the species has now moved into human
habitat, earlier primarily the domain of aegypti. Scientists say
albopictus is now competing with aegypti in urban areas and poses a
major challenge to public health because of its adaptability.
Containing albopictus is much more difficult because it grows both in
natural and man-made containers. These two mosquitoes have made
dengue, or break bone fever, an endemic disease in most southern
states. "There are cases of dengue in almost all districts in the
southern states throughout the year," Tyagi said. "It is no more a
seasonal disease. And it's because we give mosquitoes a chance to
breed during all seasons." The incidence of dengue has almost doubled
in Tamil Nadu and increased four-fold in south India this year.
(Source: TOI, Oct 19, 2012)
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