The 1918 flu pandemic, commonly referred to as the Spanish flu, was a category 5 influenza pandemic caused by an unusually severe and deadly Influenza A virus strain of subtype H1N1.
Project Lead The Way (PLTW) is an American nonprofit organization that develops STEM curricula for use by US elementary, middle, and high schools.
PLD is defined as a need for a service memberâs skill or experience that justifies the continuance of that service member on active duty in a limited assignment; the service member may be retained on active duty or in active status for a specified period of time.