Fever can support the immune system's attempt to gain advantage over infectious agents, such as viruses and bacteria, and it makes the body less favorable as a host for replicating viruses and bacteria, which are temperature sensitive. Infectious agents are not the only causes of fever, however.
Your sister's grandson is your great nephew. You are his great aunt (if you are a woman) or his great uncle (if you are a man).
Confidence votes 68. Many genealogy programs include a feature that calculates relationships between family members. The relationship between a grandmother's brother and a her grandchild is grand uncle or great uncle.. Learn more at 23andme.com. + 2 others found this useful.