It has infected poultry, domestic ducks and migratory birds in nine countries, making the virus almost impossible to contain.

In its variants, the virus also contained the following strings:

The virus apparently contains the aliens' genetic blueprints, awaiting reconstitution when the master species returns to Earth.

Many viruses contain lipid or protein coats that can be inactivated by chemical alteration.

Witness the virus contained within, designed specifically to destroy the Borg.

Each virus contains seven proteins, four of which are completely unknown.

The virus contains code that enters a processing loop each time the processor's timer tick is activated.

An alien virus arrives on earth contained in a tiny black disk.

The virus contains just seven genes, yet it manages to kill up to 90 percent of the people it infects.

When a virus containing the genes of one cell infects another, the genetic makeup of the latter changes.