These items might contain bacteria, viruses, or parasites that could make you sick.

"They contain techno-organic parasites that will infiltrate and deactivate the device."

However, blood, urine, sputum, and other samples may also contain parasites.

Surface water in the wilderness can contain viruses, bacteria or parasites.

In addition to harboring bacteria, raw fish may contain parasites.

Even small amounts of water can contain parasites.

Live fish need to be quarantined first, so they are safe to feed (containing no diseases or parasites).

Most bodies of water have been found to contain parasites.

Because of this, animal products containing parasites and harmful bacteria can be especially dangerous to pregnant women.