Epidemic or outbreak, depending on how many people or how big of a geographical area is involved. If an entire continent or the entire world is involved it can be called a pandemic. Other synonyms could be: contagion, plague, or scourge.
Another term that may apply to the definition of "a deadly disease that spreads rapidly" in an individual, is metastatic, usually referring to spreading cancerous diseases.
extinct?
Scurrilous = describes the making or spreading scandalous claims about someone with the intention of damaging their reputation.
(noun or noun adjunct) "The disease spread rapidly and there was no cure." "Measles is a viral disease that usually affects children." "The disease organism in many of the cases was a mutated bacteria."
There was a malicious disease spreading throughout the camp, killing many people. :) Hope that helps.
No - the word "rapidly" is an adverb.
A quantity having direction as well as magnitude, also, the word can be used to refer to disease-spreading organisms (such as fleas and rats).
Stratus is named from the Latin word stratus meaning "spreading out" which describes the characteristics of the cloud. It is related to the word stratum, meaning spread out in a layer, used in geology.
Rapidly is an adverb so it is most commonly used to describe a verb and tells 'how' the verb is being done. Ex: Susan drives rapidly across town because she is late to pick up her daughter. Here drives is the verb and rapidly describes how Susan is driving.
The word rapidly is an adjective. no
more rapidly
more rapidly and most rapidly
Zoonosis is the term used to describe diseases that can be transmitted from animals to humans.