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).
It goes like this: Your father's mother's brother is your father's uncle-YOUR great uncle. That gentleman's son is your First Cousin-once removed. That Son's daughter is YOUR Second Cousin. It would have had to go up one more generation to become Third Cousin.t goes like this: Your father's mother's brother is your father's uncle-YOUR great uncle. That gentleman's son is your First Cousin-once removed. That Son's daughter is YOUR Second Cousin. It would have had to go up one more generation to become Third Cousin.