Most such pathogens, often deadly, come from cattle manure that finds its way into the meat when the animals are slaughtered and butchered.

Everything in Jenette's life revolved around that deadly pathogen.

One reason is that it is difficult to acquire and use the complicated gear needed to make and scatter deadly pathogens.

Tension between science and the public has thrown up new barriers to research involving deadly pathogens, stem cells and human cloning.

All laboratories in the network operate at the second-highest hazard level, known as P-3, reserved for all but the most deadly pathogens.

For example, we need to study these deadly pathogens to learn how to deal with them, before someone unleashes them accidentally or on purpose.

Investigators, he added, would then examine the "chain of custody" to see if any suspicious individuals had access to the deadly pathogen.

But city health officials have begun to formulate a plan to persuade New Yorkers exposed to a deadly infectious pathogen to stay at home.

This viral Frankenstein, perhaps the most deadly pathogen in human history, now lives on in quarantine.

The faster those exposed to most deadly pathogens are vaccinated against a disease, or treated with antibiotics to combat it, the lower the death rate.