Sentence examples for more lethal virus from inspiring English sources

The threat is aggregated by the growing possibility that individuals or small groups could manufacture a more lethal virus artificially.

"The technique reported in Science is neither a practical nor efficient method for making more complex, lethal viruses," said Alan Leshner, chief executive officer of AAAS, in a statement.

But the St . Louisencephalitis virus is actually more lethal than the West Nile virus.

All the pandemic viruses of the last century — the 1918, 1957 and 1968 flus — had a mutation in the gene coding for a protein known as PB1-F2 that is thought to make a virus more lethal.

If they start tinkering with bird flu – and they are – to make potentially more lethal forms of the virus – and they have – then that is bound to lead to headlines with various permutations of "Mutant Bird Flu Research Fears".

But scientists have yet to figure out what causes the mutations, when they will occur and what makes certain viruses more lethal than others.

People worried about computer security agree, however, that the situation demands immediate attention because of the threat of viruses more lethal than SoBig.

The moratorium and the new rules apply only to a small range of experiments, so-called "gain-of-function" studies, in which researchers use gene engineering or other techniques to make naturally occurring H5N1 viruses more lethal or able to jump to new hosts, such as mammals.

Had the virus been more lethal, the penalty for late delivery and insufficient supplies of vaccine would have been a public health catastrophe.

Had the virus been more lethal, those delays would have resulted in huge loss of life.

The avian influenza that killed 1000 or more migratory birds at Lake Qinghai in western China in mid-May may represent a new and more lethal form of the HN51 virus, Chinese researchers report.