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From VOA Learning English,
this is the Health Report.
The World Health Organization has declared
the Pakistani city of Peshawar the world's
"largest reservoir" of endemic polio virus.
And WHO officials fear Pakistanis
could face travel restrictions
unless steps are taken immediately
to stop the disease from spreading.
Researchers studied all the cases of
poliomyelitis in Pakistan last year.
The researchers found that almost every case
could be linked genetically to the polio virus
often reported in Peshawar.
They added that all test samples
collected from different parts of the city
have shown the presence of the highly infections virus.
Polio mainly affects children under 5 years of age.
The virus is passed through food or water.
The virus reproduces in the body
and later invades the nerve system.
The disease can sometimes lead to paralysis
with loss of muscle control in part of the body.
The WHO study found that 90 percent of Pakistan's Polio cases
could be linked to the virus in Peshawar.
In addition, 12 of the 13 polio cases in Afghanistan
were also linked to the city.
Elias Durry serves as the WHO's emergency coordinator
for polio in Pakistan.
He says local officials need to take urgent action
to strengthen vaccination campaigns.
He says the situation in Peshawar not only threatens
the gains Pakistan has made against Polio,
but could also harm international efforts to stop the disease.
"Unless the polio eradication program in Pakistan
is able to curtail the transmission in Peshawar,
the expansion of the viruses to other places will not stop.
So, it is critical that Peshawar,
the way it is behaving now,
really be able to find ways of interrupting these transmissions
that have been consistent throughout the years," said Durry.
He also noted an increase in deadly attacks
on vaccination campaign workers
in and around Peshawar and in other areas.
Taliban militants often attack polio workers in Pakistan.
The militants accuse them of being American spies
or part of a plot to keep Muslims from having babies.
Most of the attacks have taken place in Peshawar
because the city is close to the country's tribal districts.
Extremist groups have bases in those areas.
Elias Durry did not reject the possibility of other countries
ordering travel and visa restrictions on Pakistan
if there is no quick improvement in the situation.
In neighboring India, no polio cases have been reported
for the past 3 years.
Starting this month, all visitors to India from Pakistan
are required to show a record of their polio vaccination.
And that's the Health Report from VOA Learning English.
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