The Cassandra Protocol by Joe Dacy

In 2035, the U.S. healthcare agency, Allcare — the sole Provider for all medical services — is controlled by a powerful artificial intelligence called Cassandra.
Veteran journalist J.J. Connor, 66, has already roiled the industry with his first book — Allcare and the A.I. — but now he’s on the hunt for more after a whistleblower tells him:
“Cassandra is killing the outliers, and I can prove it.”
He and his beautiful young researcher, Honor Sorenson, find that thousands of patients are dying in droves after enduring the long and costly hospital stays dictated by the Cassandra Protocol.
But it’s not long before Connor becomes one of them, trapped in an ICU with a unique (or tailored?) strain of pneumonia, and under threat from the soulless entity he is investigating.