Many in France look to a highly distinguished, if eccentric, microbiologist who touts a treatment for Covid-19, but the skeptical doctor has some justifiable doubts over at City Journal.

France has a new savior—neither its president nor the savior proclaimed as such by its former religion, but Professor Didier Raoult, an eminent microbiologist who works in Marseille. He strongly, indeed loudly, advocates the use of hydroxychloriquine and azithromycin in the treatment of patients with Covid-19.