From the front flap of the Ace first edition: "It is called GenoVax. The death it brings is terrifying. Quarantine and isolations are futile - the infection rate is nearly one hundred percent. It is the most frightening weapon man has ever created. And when it is unleashed, the human race will know what it is like to burn... It started in Mexico City disguised as a vaccine. Now it is out, and spreading. Virologist Marte Chang is determined to isolate and destroy the virus, but first she must unlock the secret of its origins - and uncover the brilliant and fanatical intelligence behind it. As a scientist she understands the necessary dangers of her work, to herself and to those who have been exposed. But can one woman halt a genocidal plan specifically designed to wipe out the entire human race? And even if she can... will there be anyone left to save?"
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