Table 2.

Transovarial transmission of Rickettsia spp. in ticks

Place	Tick species	Study type, test performed	Transovarial infection rate	Filial infection rate	Reference
R. rickettsii
Brazil	A. aureolatum	PCR	100%	100%	Labruna et al. (2011)
Brazil	Rh. sanguineus	PCR	NA	< 50%	Piranda et al. (2011)
Brazil	Rh. sanguineus	PCR	NA	100%	Pacheco et al. (2011)
Brazil	A. cajennense	qPCR	< 50%	< 50%	Soares et al. (2012)
Brazil	A. aureolatum	qPCR	25%	NA	Binder et al. (2021)
USA	D. andersoni	Experimental study	100%	100%	Burgdorfer (1963)
R. conorii conorii
Algeria	Rh. sanguineus	PCR	100%	Up to 99%	Socolovschi et al. (2009a, b)
Algeria	Rh. sanguineus	PCR	100%	Up to 99%	Socolovschi et al. (2012)
Thailand	Rh. sanguineus	PCR	NA	NA	Matsumoto et al. (2005a, b)
R. raoultii
India	Rh. annulatus	PCR	8%	NA	Hembram et al. (2022)
India	Ha. bispinosa	PCR	15%	NA	Hembram et al. (2022)
Netherlands	D. reticulatus	PCR	NA	NA	Alberdi et al. (2012)
Northern Mongolia	D. nuttalli	nPCR	NA	NA	Moore et al. (2018)
Turkey	D. marginatus	PCR	NA	NA	Orkun (2019)
R. slovaca
Turkey	D. marginatus	PCR	NA	NA	Orkun (2019)
USA	D. variabilis	PCR	≥ 99%	≥ 99%	Zemtsova et al. (2016)
R. massiliae
France	Rh. turanicus	PCR	100%	98.5%	Matsumoto et al. (2005a, b)
R. africae
Ivory Coast, Africa	A. variegatum	PCR	100%	93.4%	Socolovschi et al. (2009a, b)
R. bellii
Brazil	I. loricatus	PCR	NA	NA	Horta et al. (2006)
R. aeschlimannii
Turkey	Hy. marginatum	PCR	25%	NA	Orkun (2019)
R. amblyommii
Brazil	A. auricularium	PCR	100%	100%	Saraiva et al. (2013)
R. montana
USA	D. variabilis	PCR	NA	NA	Macaluso et al. (2001)
R. rhipicephali
USA	D. variabilis	PCR	NA	NA	Macaluso et al. (2001)
Rickettsia spp.
Northern Germany	I. ricinus	qPCR	NA	22.7%	Hauck et al. (2020)

NA not available