The typical incubation period for influenza is 1-4 days (average: 2 days). Adults shed influenza virus from the day before symptoms begin through 5-10 days after illness onset.sually a high fever lasts only a few days for a normal bout of the flu without secondary infections, perhaps 3 days at the most, although low grade fevers can accompany flu s â¦ ymptoms for slightly longer.
Definition of granum. plural. grana. play \ËgrÄ--nÉ\. : one of the lamellar stacks of chlorophyll-containing thylakoids found in plant chloroplasts.
Chloroplasts are specialized organelles which contain chlorophyll  which absorbs energy from sunlight. The process of photosynthesis  takes place in thylakoids which are orgâ¦anized in stacks called  grana.