Preliminary tests of the H1N1 pandemic virus samples taken from Ukrainian patients haven't exposed any signs of mutation, experts of the World Health Organization said on Tuesday.
"The preliminary genetic studies have shown that the virus is similar to the virus, against which there have been developed a pandemic vaccine, the vaccine, which has proved to be efficient at present," the statement reads.
Experts examined a total of 34 samples in two laboratories in London, the UK, and in the state of Georgia, the U.S.
According to the Ukrainian Health Ministry, the current flu epidemic and other acute respiratory diseases in Ukraine has claimed 328 lives by Tuesday evening.
It said 12 people, including two pregnant women and a child, had died of such diseases in the previous 24 hours.
