It does not appear to have previously infected humans, she said.

Giardia lives inside the intestines of infected humans or other animals.

Antifilarial medication for infected humans generally is not supported in the medical literature.

These infected humans also become psychically linked to one another and to the genestealers.

So scientists have been unable to come up with a practical test to detect the agent in healthy but possibly infected humans or animals.

This was later shown to correlate with high levels of cytokines in infected humans.

They were not the same viruses that infected humans.

The parasite makes infected humans smell more attractive to mosquitoes.

Flies that have bitten infected humans transmit the disease when they bite another person.

The number of infected humans must now be so large that any military action would kill tens of millions.