What is the most logical next event?

How to care for a sheep with pneumonia
Remove the sick sheep from your herd.
Pneumonia, in some cases, can quickly spread from one sheep to another and result in deaths. Take the afflicted sheep and put them in a quarantine separate from the rest of the herd making sure they do not share grazing land, food, or water supplies.

Available options: (I) If the infected sheep go into quarantine, it's often a good idea to get the sick sheep to a vet or medical facility. Place the sick sheep safely in a locked pen set out for free at all times.. (II) Seek professional help if your sheep have come to a complete natural death. Injuring the sheep in this manner could easily result in fatal illness.. (III) For recovery sake, you'll want them to be placed in a warm and dry environment. This will prepare them to weather symptoms better as humid environments can exasperate breathing problems and extreme temperatures can hinder recovery.. (IV) All of the animals will most likely sleep in separate shelters. You should also cover the grassy areas of the pasture and fence each space with oxygen-powered wire..
(III)