Contagions [noun]

Standard vaccine studies involve thousands of participants, must recruit in areas where contagion is naturally high, and typically take months or even years as researchers wait to see how many people contract the disease.

Facing flare-ups from late June through August that were sometimes higher than the initial spread of contagion, countries initially refrained from blanket orders.

The World Health Organization acknowledged the airborne spread of particles in July and hundreds of scientists have written about this form of contagion.

Hungary’s decision to close its borders is based on its own “traffic light system” for contagion risk, which currently shows Hungary as green and everyone else as red.

There are a lot of upsides to urban density — but viral contagion is not one of them.

It may be transmitted through the air for short distances, not nearly so far as the air will carry the contagion of smallpox.

The contagion is spread just as that of smallpox is spread, except that it is not carried through the air so far.

The specific cause of typhus is unknown, but the contagion develops and reproduces itself in the body of the patient.

Curiously enough, for the next two days and nights a perfect contagion of watching seemed to have spread through the village.

Wedding-cards have been pouring in till the contagion has reached us; Edith will be married next Thursday.