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).
sibling love ivanka trump posted a throwback tribute to her half sister tiffany on her 21st birthday today with the caption happy birthday @ tiffanytrump i m so proud of the woman you have becomexoonald trump s rarely seen youngest daughter tiffany turned 21 today and her half sister ivanka was ready to celebrate the 32 year old shared a picture of the two of them in tiffany s teens with the affectionate caption happy birthday @ tiffanytrump