In a romantic - themed fanfiction, if there's a love interest, that person would be extremely concerned. They might hold Bella's hand, whisper soothing words, and even sacrifice their own needs to make sure she gets better. Meanwhile, some rival characters might see this as an opportunity to gain an advantage, but most of the good - hearted characters would come together to help Bella through her fever.
Some characters might be very worried and immediately try to take care of her. They could bring her medicine, make her comfortable, and stay by her side.
Ross would be extremely worried. He would likely call for the doctor right away and stay by Demelza's side, constantly checking on her temperature and making sure she was comfortable.
Edward would be extremely distraught. He might blame himself for not being there to protect Bella. He would likely stay by her side constantly, using his vampire abilities to try and heal her if possible. Alice, on the other hand, might have seen the accident coming in one of her visions but was unable to prevent it. She would be filled with guilt and would try to use her visions to figure out how to help Bella recover.
The other characters would be worried. North might immediately start making plans to take care of Jack. He could offer him a warm place to stay in his workshop.
Perhaps in the fanfiction world, Bella caught a mysterious disease that's specific to that fictional universe. It could also be that she overexerted herself, like using her special powers too much if she has any in the story. Stress can also be a factor. If she's been through a lot of emotional turmoil, like a fight with a loved one or facing a big threat, her body might react with a fever.
Some vampires might be in awe. Since the idea of Bella having children with multiple powerful Volturi members is quite extraordinary. They may see these children as a new hope or a new kind of power in the vampire world.
Sakura would be very worried and immediately start taking care of Naruto. She would check his temperature, give him medicine, and make sure he's comfortable. Kakashi might be a bit more laid - back on the outside but would secretly be concerned. He would keep an eye on Naruto's condition and also ensure that the village is still protected. Sasuke, if he's around, might act like he doesn't care much at first, but he would actually be worried. He might even go on a little side - quest to find a special herb or something that could help Naruto get better faster.
Edward would be completely shattered. He might lose all sense of purpose and even consider ending his own existence. Jacob would be filled with anger and grief. He might blame Edward and the Cullens for not protecting Bella. Charlie would be heartbroken and would likely be in a state of shock for a long time.
Bella would likely become more fierce and protective. As a mother, she would do anything to safeguard her child. Edward would become more calculating in his actions, always thinking about the long - term safety of their family.
Hermione would probably be both amused and concerned. She might try to find a magical solution to get him out of this situation as quickly as possible while also having a bit of a chuckle at the absurdity of it all.