Virulence

Goldman Sachs, the American financial powerhouse, is trying to factor into its investment decisions and counsel all possible Omicron outcomes — from a worst-case scenario of greater virulence and vaccine-evasion to the nice surprise that the vaccines remain efficacious, and Omicron turns out to be more benign than its forerunner.

Pyrexia is but a sign of the intensity of the activities of the infective agent, and by artificially reducing the body heat we really do not lessen the virulence of the poison, as shown by the rise of the temperature again as soon as the action of the antipyretic subsides.

Francis was enraged at the interference, and opposition made him more in earnest; but just at this time, the civil war, which had hitherto left their part of the country comparatively quiet, arose with great virulence in their immediate vicinity.