Malaria
warning as resistant strain spreads to Vietnam
A form of malaria that is resistant to standard treatment has
spread to Vietnam for the first time
A
form of malaria that is resistant to standard treatment has spread to Vietnam
for the first time, researchers warned Friday.
The strain was originally detected
in Cambodia in 2007, and experts are calling for action before it reaches
other areas such as India or Africa.
”It spread like a wildfire to
Vietnam,” professor Arjen Dondorp, head of malaria department at the tropical
medicine research unit at Mahidol University in Bangkok, told AFP.
The co-author of an article
published on Thursday in the medical journal The Lancet Infectious Diseases
added: “It started 10 years ago in western Cambodia. It is very fit and
spreads very easily.
This resistance is taking over.
“Cambodia already changed to a new
drug, likely to last one or two years. Vietnam has to change now.”
After its detection in western
Cambodia in 2007, the strain then spread to northeastern Thailand, southern
Laos and eastern Myanmar, a previous study by Dondorp and colleagues said.
“The fear is that it spreads
further, to India and Africa,” warned Dondorp.
The standard frontline choice for
treating malaria is artemisinin in combination with another drug. The
parasite mutation spotted by Dondorp’s team notably confers resistance to the
drug piperaquine.
According to the World Health
Organization (WHO) there were at least 212 million cases of malaria in 2015
and 429,000 deaths. The disease is caused by parasites transmitted to people
through the bites of infected female mosquitoes.
For specialists, the emergence of
the new strain in Southeast Asia is worrying, even though the number of cases
is limited.
Two waves of malaria resistant to
standard treatments appeared in the 1950s and 60s in Southeast Asia and
spread to India and Africa, where they caused millions of deaths.
Dondorp chairs the steering
committee for a large regional malaria grant from the Global Fund, a
financing organisation, in Thailand, Cambodia, Vietnam, Laos and Myanmar with
a budget of $243 million (203 million euros) over the next three years.
He advocates treatment at an early
stage of the disease, which will require community malaria workers in even
the most remote areas at risk.
By Afp
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Chủ Nhật, 24 tháng 9, 2017
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