These lakes are the largest waterbodies, whether natural or constructed. These lakes, held back by dams, are the largest waterbodies serving water and power supply needs. Salt lakes are normally dry, appearing as glittering sheets of salt that stretch to the horizon.
The Incubation Period for Norovirus. The incubation period for an infection from norovirus typically take place throughout a time frame of 48 to 72 hours from the initial infection. This time usually defines the time between catching the infection and developing its associated symptoms.
He had no symptoms of infection because he was still in the incubation period of the disease. In contrast to Ebolaviruses, poliovirus and norovirus are shed during the incubation period â in the feces, where they can infect others. Remarkably, viral incubation periods can vary from 1 or 2 days to years (Table; click to magnify). Short incubation times usually indicate that actions at the primary site of infection produce the characteristic symptoms of the disease.