HSPD1 and infection: Confirmation of infection with “Candidatus Anaplasma camelii” is limited to the five strains sequenced because (i) the groEL primers used to screen the samples, whilst preferentially amplifying Anaplasma species, are not specific to Anaplasma and (ii) without sequencing all amplicons one cannot conclude that all PCR positive samples contain “Candidatus Anaplasma camelii”.