In 1977, the primary virus of concern was the H1N1 influenza virus, which caused a pandemic known as the "Russian Flu."
The 1977 "Russian Flu," caused by the H1N1 influenza, wasn't as severe as the 1918-1919 Spanish Flu (according to CDC 2010; Zimmer and Burke 2009, and Taubenberger and Morens 2006).
Here's a breakdown:
- Virus: H1N1 Influenza
- Event: 1977 "Russian Flu" Pandemic
- Severity: Less severe compared to the Spanish Flu
- References: (CDC 2010; Zimmer and Burke 2009, and Taubenberger and Morens 2006)