Read an apocalyptic book, Sugar Scars by Travis Norwood. A virus has swept the world with 1 survivor in 9,600 who were immune. Theres plenty of stuff available for the survivors, but one survivor has special needs, she calls herself, Sugar. Sugar is a type 1 diabetic who will die quickly without insulin.
For a while the power and water still function and she raids all the pharmacies for insulin. Then the poser fails, with the help of another survivor, the fridge is powered by a genenerator from Home Depot. This is the begining of troubles for Sugar as she deals with expiry dates, attempts to replicate the work of Fredrick Banting and Charles Best, 100 years earlier on extracting insulin from pig pancreases.
Sugars quest leads her to meet good, bad and indifferent survivor. It is quit the tale.The plus for me was learning how difficult the work of Banting and Best.
Currently rereading another apocalyptic book, Lucifers Hammer by Larry Nevin and Jerry Pournelle. Earth is struck by the comet, Hamner-Brown. Im still in the introduction of the story meeting the cast of characters. The comet is not yet visible to the naked eye still far out. There is an insulin connection in this novel, but not as fleshed out as Sugar Scars.
Still suffering with Covid.It may take some time to finishe Lucifers Hammer as I tend to fall asleep while reading. If you havent guessed I am a diabetic who uses insulin. Both books emphasize how fragile our modern interdependent life is. We can see this in the shortage of baby formula when one plant had issues.