I read a paperback novel in the 70s where a meteor crashes into the amazon and some creature, a giant mosquito of sorts (more like a Stirge from Dungeons and Dragons) survives the crash.
The creature drinks blood and then lays eggs in the wild boar in the jungle. Eventually, it spreads and starts reproducing using humans instead. Humans try to stop the spread.
The story ends in Alaska, humans have retreated to where it is too cold for the creature and even there, when outside, people have to wear heavy gear to protect against attacks.
The creature drinks blood and then lays eggs in the wild boar in the jungle. Eventually, it spreads and starts reproducing using humans instead. Humans try to stop the spread.
The story ends in Alaska, humans have retreated to where it is too cold for the creature and even there, when outside, people have to wear heavy gear to protect against attacks.