The loss of hereditary immunity had unforeseen and lasting consequences. This increasing susceptibility to mosquito-borne diseases, as we will encounter during the American Civil War, also equated to higher death rates, which fueled the demand for more and increasingly expensive slaves. Given that the slave trade was illegal and the British Royal Navy was diligently patrolling the West African coast, forced breeding and plantation rape became not only extremely lucrative but also exceedingly common.
