Final Warning 5

 Author: Dr. G. Vanden Bossche; NONCONFIDENTIAL; DO COPY; DO DISTRIBUTE 

The current COVID-19 pandemic is often compared to the 1918 H1N1 influenza pandemic . 

For example, the 1889-92 influenza outbreak had three distinct waves, which differed in their virulence. The second wave was much more severe, particularly in younger adults.  

As major source of viral spread (nonNACs)  is drying up, more NACs become susceptible to disease: HOW DOES THAT WORK? 

Three waves of death: weekly combined influenza and pneumonia mortality, United Kingdom, 1918–1919. The waves were broadly the same globally during the pandemic. Taubenberger JK, Morens DM. 1918 Influenza: the Mother of All Pandemics. Emerg Infect Dis. 2006;12(1):15-22., CC BY 

The current COVID-19 pandemic is often compared to the 1918 H1N1 influenza pandemic, which had three distinct waves over the course of a year. The proportion of influenza patients who were severely ill or died was much higher in the last two waves compared to the first.