3rd factor problem. People with parasites are highly likely to die of covid so treat the parasite decrease mortality
Still, I'm not sure there's any reason to trust this latest Didier Raoult paper any more than the meta analysis carried out of numerous papers and studies into AZ/HCQ carried out by institutions that hadn't staked their reputation on it being a cure in March 2020
So far as I know, France doesn't have a serious human parasite infection problem.