Jack, the rabbit, tries to make his friend Rick, a sick bear, feel better.

When Squish, a meek amoeba who loves the comic book exploits of his favorite hero, "Super Amoeba," starts feeling sick, he worries he has caught a deadly illness.

When a field mouse discovers that his friend is sick in bed, he is determined to make her feel better.

Penny Landlow, seventeen, the overprotected daughter of a powerful crime family, has rarely left the family estate due to a blood disorder, but when tragedy strikes and she's left alone in New York City, she must prove she's not as fragile as everyone believes.

A deadly, flu-like epidemic and a plague of flesh-eating creatures threaten the lives of the children at Perdido Beach while Sam, Astrid, Caine, and Diana each struggle with doubts and uncertainties.

Nanny goat, sick in bed from a boating mishap, is visited by her animal friends with gifts to cheer her, after which she returns the favor by taking them out on her new boat.

"Charlotte, a budding bunny scientist, ignores the doubters and confidently finds a cure to the mysterious malady affecting the forest"--

"Four sisters rely on each other--and a bit of mysterious magic--to cope with their mother's illness"--

Ash finds her stepbrother, Bly, in Snowflake, Arizona, where an odd assortment of neighbors--and soon, Ash--are sick from modern life, paralleling the planet's decline.

"Isabel has one rule: no dating. It's easier-it's safer-it's better-for the other person. She's got issues. She's got secrets. She's got rheumatoid arthritis. But then she meets another sick kid. He's got a chronic illness Isabel's never heard of, something she can't even pronounce. He understands what it means to be sick. He understands her more than her healthy friends. He understands her more than her own father, who's a doctor. He's gorgeous,...