The game looks fantastic; the shadows and light really make it a spooky and freaky environment and the sounds enhance this with the occasional increase in ambient music to remind the player that they are in a spooky situation.
The scares were well times and were smooth, and even looked good! Which makes this game stand above a lot others. The hospital was really a good environment and you made the room layout well for the jump scares. Was honestly surprised when there was more to explore after opening the door in the dark hallway.
You even put an animated sky and put more of the hospital outside to see from the window. Not many may notice it, but the fact you put those there shows that you payed attention to detail and tried your very best, which really pays off!
The story could have been slightly better, (Also I noticed the sneaky 'foreshadowing' you had in the office where it said that contagious people must be kept under lock, and then in the hallway, there was an 'infected' person locked there.) as the the book (which the game is named after) is a very minor thing in the game itself and things don't really seem to be connected or make sense but it was still well enough and was executed well because of the environment and the things that were happening.
Honestly had a lot of fun playing, this game was really, really well done. Congrats on it, and good luck for future projects!