Everyone knew that polio was highly infectious and parents feared the disease more than any other.

The Norwalk virus, found on cruise ships, is highly infectious.

Like some of the plant diseases we looked at, it was highly infectious.

And while some patients have proved highly infectious, others have not, for reasons that remain unclear.

She added that if these mice really did develop scrapie, their brains should be highly infectious.

But, surely, you've already told me that it's highly infectious.

The disease, while not fatal, is debilitating and highly infectious.

Vampirism is highly infectious, and even small touches can eventually cause conversion.

Leprosy is not known to be either sexually transmitted or highly infectious after treatment.

But hantavirus does not appear to be highly infectious; it is nearly always found among people in isolated cases.