Healing Hands by Stella Cassy

A desperate father.
A world in danger.
Rothren is a linguistics teacher on his home planet—or he was before the Neff virus took hold. Having lost everything, he hunts down a doctor that may be able to help save those who are left. Yet the universe holds more for them than simple business.
Can a heart so broken learn to love again?
Marie is one half of a pair of brilliant physician sisters. She works tirelessly to provide excellent treatment to her patients, be they human or otherwise. But she’s certainly not expecting feelings to develop after being abducted by a large alien.
Love appears in the strangest places.