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 flu can last anywhere from seven days to two weeks, depending on the individual. The best treatment for the flu is to stay well-hydrated and get lots of rest.It is a self-limiting viral infection.he flu can last anywhere from seven days to two weeks, depending on the individual. The best treatment for the flu is to stay well-hydrated and get lots of rest.