The “Tunnel Warfare” theory tries to respond to the anormality that in early stages of 1918 outbreaks the deterioration cycle was slow and in the later waves the deterioration was faster and more contagious.
The “Tunnel Warfare” theory tries to respond to the anormality that in early stages of 1918 outbreaks the deterioration cycle was slow and in the later waves the deterioration was faster and more contagious.