A heartwarming video of a ginger cat comforting a sick black-and-white foster kitten has gone viral on TikTok. The kitten is believed to have feline infectious peritonitis (FIP), a potentially fatal disease. The video shows the ginger cat snuggling up to the sick kitten, despite only just meeting her. FIP is caused by specific strains of the feline coronavirus and can have various symptoms, including fatigue, weight loss, fever, breathing difficulties, and loss of appetite. Diagnosis can be challenging and may require blood tests and X-rays. TikTok users have shared their own stories and offered advice to the kitten's owners. One user commented on the intelligence and compassion of cats, while another suggested FIP medication that had helped their own cat. The video has touched many hearts, and people are eagerly following the progress of the ginger cat and the foster kitten. If readers have their own heartwarming stories or experiences with FIP, they are encouraged to share them on Facebook.