Amitav Ghosh's novel The Calcutta Chromosome is based on a strange premise: what if personality could be transmitted via a female Anopheles mosquito? In this scenario, such a mosquito could nip a doctor, say, pick up latent malarial plasmodium, and then wander over to nip you. The malaria is bad enough, but post-recovery, your friends notice you insist on wearing a stethoscope at all times.
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