The information is preliminary; further checks and updates are necessary to be sure that it works, the Chinese ambassador to Russia said

Chinese scientists have developed a vaccine, which, preliminarily, proved efficient against the coronavirus. China's ambassador in Russia Zhang Hanhui said so as quoted by Interfax.

"The vaccine has already been developed in China; it shows the immunity ['s capability to fight the virus]. But that's just preliminary; one needs further checks and developments", the diplomat said.

He also claimed that the effective medication against coronavirus was found.

"The practice shows that Chinese drugs are effective. There hasn't been a single case of complication, as long as the medicine is taken. The overall effectiveness rate of Chinese medications exceeds 85 percent [of all cases], in some areas it exceeds 90", the Chinese diplomat said.

The official claimed that an old medication against the disease, chloroquine phosphate, was found in China. "We've been using it against malaria", he said.

"There's also an old Soviet-made drug. So far, two kinds of medications are considered more effective. The most effective ones are the European medicine combined with the Chinese", he said.

Besides, Zhang Hanhui denied any allegations that the origins of the coronavirus are artificial ones. "Perhaps, it's a SARS virus that originated from the wild animals", he said.

The ambassador added that they still search for the source of the virus; there's a version, according to which the host was a bat, but it's yet to be checked and confirmed.