What unit of measure would be used to measure the thickness of a leaf? the basic measure of length used to measure the thckness of a pin or leaf is in millimeter Edit
Q: When is someone who has the flu contagious? Some people who are infected with the influenza virus can actually transmit the illness before they begin to feel any symptoms. Most of the time, you will become contagious about 24 to 72 hours after contracting the influenza virus and remain that way for up to five days after the onset of symptoms. But children or people with compromised immune systems can be contagious to those around them for up to two weeks. Flu is most commonly spread by coming into contact with respiratory moisture droplets from an infected person through sneezing or coughing.
The contagious period for a cold lasts about three to four days into the illness. As a general rule, people with a cold are most contagious about three days after their initial exposure to the virus.For more information on colds, influenza and related topics, check out the links on the next page.Print.f you think about how a virus works, it makes sense that we're most contagious when our symptoms are at their worst. Viruses like influenza and those that cause the common cold (there are a couple of hundred of them) have an incubation period once they get into your body.