Plagues, Pestilences and Diseases
15 October 2010 Last updated at 08:14 ET
Deadly Dengue disease major threat to global public health
By Ania Lichtarowicz Health reporter, BBC News
The number of cases of a deadly parasitic disease has more than doubled
in the last decade, according to the World Health Organization (WHO).
Dengue outbreaks are now a major threat to global public health.
The UN health agency warned that unless countries act now then the
situation will only get worse.
Two fifths of the world's population are at risk of the disease, with
the majority living in the Asia Pacific region.
Cases double
Dengue is a serious flu-like illness that is transmitted by mosquitoes,
and can develop into dengue haemorrhagic fever, which can be fatal.
The disease is spread by the aedes aegypti mosquito.
The WHO has warned that the increased number and size of dengue
outbreaks in some countries in the Western Pacific region, as well as
cases recorded in previously unaffected areas, are signs that firmer
action cannot be delayed.
“ The fight against this disease is everybody's problem.” - Dr. Shin
Young-soo WHO regional director, Western Pacific
The WHO's regional director for the Western Pacific, Dr Shin Young-soo,
said:
"National resources need to be mobilized to sustain dengue prevention
and control, and the disease's profile needs to be raised on the global
health agenda to stimulate the interest of international agencies and
donors.
"The fight against this disease is everybody's problem."
The number of cases in the Western Pacific Region has more than doubled
over the past 10 years.
There has been a significant increase in many countries this year alone.
The Lao People's Democratic Republic and the Philippines appear to be
particularly affected.
2.5 billion at risk
Two-fifths of the world's population is at risk of the disease.
Out of these 2.5 billion people, more than 70% live in Asia Pacific
countries.
The warning was delivered at the WHO's Regional Committee for the
Western Pacific.
Dengue fever
Disease is spread by mosquitoes
Found in tropical and sub-tropical climates
No specific treatment or vaccine is available
500,000 people hospitalised each year
Children are most at risk of dying
Source: WHO
The increased number of outbreaks may be caused by a number of factors;
including higher temperatures and rainfall which produce perfect
breeding conditions for the mosquitoes that carry the disease.
Growing populations, particularly in cities, and greater international
travel by infected individuals could also explain the rise.
The WHO says there is as yet no clear evidence that the increase in
cases was due to global warming.
But changes in climate do affect mosquitoes which spread the disease.
At a local level eliminating breeding sites like water jars, building
sites and discarded garbage is essential in reducing the number of
mosquitoes.
But a concerted international effort is vital, with urban planning and
improving sanitation essential to reducing the number of dengue cases.