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.
The thylakoids are arranged in stacks called grana (singular, granum). These various structures within the chloroplast organize the complex series of chemical reactions that make up the overall process of photosynthesis. Some of the steps take place in the thylakoid membranes, while others take place in the stroma.