Panicking ISIS could be crippled by the deadly virus after residents living under the ISIS reign - also known as Daesh - reported a "mysterious epidemic" sweeping through the region.
A human rights monitor group based in ISIS-ruled territories revealed the outbreak had infected "dozens of civilians in the countryside of Raqqa", where the terror group has set up its headquarters.
The reported death toll, which rose to "around 20 people" this week, has put the panicked terrorists on edge and prompted a desperate health shut down.
According to watchdog Raqqa Is Being Slaughtered Silently (RIBSS), the epidemic had triggered "panic among civilians" and taken the lives of at least two children so far.
Barbaric militants have been issuing information leaflets in strongholds urging citizens to wash their hands to avoid contracting the killer virus.
One analyst revealed: "ISIS distributed influenza prevention flyers throughout Raqqa yesterday because of the spreading flu.”
Swine flu, which turned into a pandemic in Britain between 2009 and 2010, is similar to the common flu, but more severe.
In Britain most cases were mild, but a number of lives were lost. The weak, old, or those with other health complications are particularly vulnerable to complications.
Also known as H1N1, the virus could now debilitate a weakening terror regime.
Daesh recently put out a desperate plea for foreign doctors, including those trained by the NHS, to move to Syria and Iraq.
The terrorists have already been forced to halve the wages of their fighters earlier this year and many living under their rule suffer from "widespread starvation and limited access to healthcare".
Physicians for Human Rights (PHR) estimate more than 95 per cent of doctors have fled or been killed in most Syrian cities.
Nobody is even allowed into the major hospitals in Damascus unless they are wearing a face mask, according to Ahmad Damiriyeh from the health ministry's division on chronic and contagious diseases.
One mother, Samia, who lives on the Syrian coast in Tartus, said: “If the virus continues to spread at this rate, we will have to leave the country. What we hear from people is scary."
Dr. Anna Farra, infectious diseases specialist at a hospital in Beirut said: “I don’t know about the number of deaths but there is definitely an increase in the number of swine flu cases in the country.",Express reported.
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