"Herxing" can be deadly - borreliosis of the relapsing fever group has been reported to have the most severe Jarisch-Herxheimer reactions during treatment:

"Herxing" can be deadly - borreliosis of the relapsing fever group has been reported to have the most severe Jarisch-Herxheimer reactions during treatment:

Trop Doct October 2013 vol. 43 no. 4 138-141 

Maternal mortality in a rural Tanzanian hospital: fatal Jarisch-Herxheimer reaction in a case of relapsing fever in pregnancy...

Maternal mortality in a rural Tanzanian hospital: fatal Jarisch-Herxheimer reaction in a case of...

tdo.sagepub.com

Relapsing fever is a disease caused by one of the species of Borrelia. It is often misdiagnosed as malaria and can have fatal complications such as the Jarisch-Herxheimer