It was the spring of 1918, and the world was at war. In Haskell County, Kansas, an epidemic of influenza was underway. Public health officials in Washington, D.C. were notified; however, no investigators were sent. Meanwhile, soldiers from all across Kansas were reporting to Camp Funston in training for the war. In hindsight, it appears that a soldier from Haskell County brought influenza with him to Camp Funston. By the middle of March, there was an epidemic in the camp. Ultimately, about 1100 soldiers were infected and 38 died during the outbreak. Unfortunately, the reporting methods at that time were not particularly good. The epidemic at Camp Funston essentially went unnoticed by public health officials. Within only a few months, the country would be caught in an epidemic that no one could ignore.
During the initial epidemic at Camp Funston, the infection was characterized by several of the typical symptoms of influenza infection.
Which of the following are symptoms of influenza infection?
