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.
Inside the chloroplasts are stacks of discs called thylakoids. They are compared to stacks of coins within the walls of the chloroplast, and they act to trap the energy from sunlight. The stacks of thylakoids are called grana.