On April 19, 2011, Map Maker was added to the American version of Google Maps, allowing any viewer to edit and add changes to Google Maps. This provides Google with local map updates almost in real time instead waiting for digital map data companies to release more infrequent updates. 2012
The basic process of viral infection and virus replication occurs in 6 main steps. 1  Adsorption-virus binds to the host cell. 2  Penetration-virus injects its genome into host cell. 3  Viral Genome Replication-viral genome replicates using the host's cellular machinery.
Regardless of the type of host cell, all viruses follow the same basic steps in what is known as the lytic cycle (see figure): 1  A virus particle attaches to a host cell. 2  The particle releases its genetic instructions into the host cell. 3  The injected genetic material recruits the host cell's enzymes.