In this alternate time line, the virus begins its outbreaks on March 20, 2007.

A virus begins making copies of itself once it is inside a system, and in that way spreads to other computers.

The virus then enters the cell and begins its replication.

The virus has begun to spread earlier, which adds to the concern.

At last, the virus could begin to act.

In Iowa, the virus quickly began spreading on college campuses.

The virus begins to spread and the deaths begin.

However, as internet usage became common, viruses began to spread online.

Then she thought of what the world would be like if the virus went unchecked, and began sending a message.

Then, the virus began to send messages to recipients taken from the address book.