17 avr. 2009 - A Second Patient Discovered
Description:
130 miles away from the first patient, a second case was found. The patients had no connection to each other. Because of the potential of the virus to spread across the nation, the CDC began working to develop a candidate vaccine virus.Ajouté au bande de temps:
Date:
17 avr. 2009
Maintenaint
~ Il y a 16 ans