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).
Report Abuse. 1  Grandparent, Grandparent's sibling=your great Uncle be certain, be certain sibling (Aunt or Uncle), great-uncle's son (1st cousin on your be certain) You, great-uncle's son daughter (2d cousin to you) Your great-uncle's son is a (first) cousin on your be certain. You and your great-uncle's son are first cousins, as quickly as bumped off.