He did this through the character Dr. Rieux and his hopeless fight against an epidemic of the disease in a long letter he wrote about a year before his 1957 death.
He did this through the character Dr. Rieux and his hopeless struggle against a Plague of death the slowly envelops the inhabitants of his city. Plagge is explicit in his usage of Camus in a long letter he wrote about a year before his 1957 death.