As well as mutating rapidly, the virus has its own counter defences, producing a protein called viral infectivity factor (Vif) which tricks the body into destroying its own APOBEC3 enzymes.
However, the switch in tactics was happening as scientists in Guinea said the virus could be mutating.
But a crisis about an editorial decision is mutating into a constitutional one.
By randomly mutating these genes and then breeding them with other, similarly mutated genomes, new offspring designs are created.
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Now it is mutating into a monster that perpetuates the very problems that it was designed to solve.
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The state-owned pipeline system is overstretched, and there has been no louder critic than Mikhail Khodorkovsky, Yukos's boss, of the Russian government's stubborn refusal until recently to allow private hands to build and own more pipelines.In this section Where the money is Making straight the furrow Mutating Seeking help Stopping spam More power to them Grounded?
Despite reports this week that the virus may be mutating, scientists have yet to show that genetic changes in the virus are related to changes in its pathogenicity.Related items Hong Kong's economy: In intensive careApr 24th 2003 Canada's worries: UntouchableApr 24th 2003 China and SARS: China's Chernobyl Apr 24th 2003 The SARS epidemic: China wakes upApr 24th 2003.
So the embryo of a mammal started off looking like the embryo of a fish, before turning successively into something like that of an amphibian and then a reptile and only later mutating into its mammalian state.Haeckel was wrong.
Close surveillance is vital to check that bird flu is not mutating into a human form.The problem with surveillance is that some countries, such as Cambodia and Vietnam, lack the infrastructure needed to do it effectively.
