T.  Chekanova and Shpynov, S., ?Avidity of IgG to Rickettsia prowazekii and the presence of specific IgM in blood sera for retrospective analysis of the 1998 epidemic typhus outbreak in Russia?, Journal of Microbiological Methods, vol. 176, no. 106034, 2020.

P.  Parola, Shpynov, S., Montoya, M., Lopez, M., Houpikian, P., Zeaiter, Z., Guerra, H., and Raoult, D., ?First molecular evidence of new Bartonella spp. in fleas and a tick from Peru?, American Journal of Tropical Medicine and Hygiene, vol. 67, no. 2, pp. 135 - 136, 2002.