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).
What she's thinking It's tough to know. People make connections for different reasons, such as proximity, family history, and personality. If Grandma lives 10 miles from your sister and 100 miles from you, she'll start to favor the grandchild she sees more often, Dr. Haltzman says.