The AIDS virus mutates quickly, and scientists need to find new drugs to stay ahead of it.
The protein on the surface of the virus, called gp120, constantly mutates to escape detection by antibodies.
Some patients might be sequenced multiple times as a tumor spreads and mutates.
He says that Storm mutates as often as every 30 minutes, updating far faster than the scanners trying to track it.
Like other bacteria, S. aureus mutates at random, and through trial-and-error it will eventually find a way to outsmart any drug.
But they say if the H5N1 strain mutates so it can be passed between humans, it could become a global pandemic, killing millions.
Meanwhile, get your flu shot, because the flu mutates so fast that we need a new vaccine every year to keep ahead of it.
It starts as a fifties war-of-the-worlds pastiche: an alien life-form arrives in a meteor and quickly mutates, threatening to destroy Arizona as we know it.
The movie itself mutates from one thing to another, throwing in beer slobs for the frat-house crowd, fart jokes for the preteens, and so on.
The problem we meant to solve mutates on its own into something else, while legal rules stay on the books, frequently causing more damage than the original source of concern.
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H5 virus which is responsible for avian flu, a disease that has forced a mass slaughter of poultry in many countries and could, if it mutates, cause a deadly epidemic among humans.
Then, as the new virus replicates it mutates further and, if luck is on its side, some of these mutations allow it to spread from human to human - a new influenza pandemic is born.
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