[[Gambar:Jarisch-Herxheimer reaction in patient.jpg|al=Réaksi Jarisch-Heixheimer dina pasén sifilis sareng HIV|jmpl|Réaksi Jarisch-Heixheimer dina pasén sifilis sareng HIV]]
'''Réaksi Jarisch-Heixheimer''' nyaéta salah sahiji réaksi dina tubuh anu disebabkeun ku lepasna éndotoksin tina mikroorganismé paéh saatossanggeus térapi ngagunakeun antibiotik. Réaksi ieu biasana kapanggih di jalma anu kaserang ku sababaraha panyakit, di antarana [[sifilis]], [[panyakit Lyme]], ogé [[leptospirosis]] <ref>{{Cite journal|last=Butler|first=Thomas|date=2017-01-11|title=The Jarisch–Herxheimer Reaction After Antibiotic Treatment of Spirochetal Infections: A Review of Recent Cases and Our Understanding of Pathogenesis|url=http://www.ajtmh.org/content/journals/10.4269/ajtmh.16-0434|journal=The American Journal of Tropical Medicine and Hygiene|language=en|volume=96|issue=1|pages=46–52|doi=10.4269/ajtmh.16-0434|issn=0002-9637|pmc=PMC5239707|pmid=28077740}}</ref>
