It has nothing to do with the theory of  autogenesis. The autogenic hypothesis postulates that the  organelles in eukaryotic cells were formed from the enfolding of  the cell membrane in prokaryotes.
How long does the flu last? For most healthy people, the flu is an uncomfortable but short-term illness that resolves itself as the immune system fights it off. Symptoms usually appear from one to four days after exposure to the virus, and they last five to seven days. For people who've had a flu shot, the symptoms may last a shorter amount of time, or be less severe. For other people, the symptoms may last longer. Even when symptoms resolve, you may continue to feel fatigued.
The aches and pains, chills, fever, and cough are bad enough; add in the other potential symptoms of flu, including runny nose, vomiting, diarrhea, fatigue, or sore throat, and you'll want the illness to be over as soon as possible. How long does the flu last? And does treating flu help make it go away faster?