To the diagnosis of echinococcus. A.P. Belyaev (Vr. Gaz., 1927, No. 21)

According to observations of A.P. Belyaev, echinococcal fluid, filtered through Schamberlend's candle and preserved in sealed ampoules for a long time, at least 16 months, has the ability to give a positive reaction when injected intradermally in echinococcal patients, namely, when 0.3-0.5 of this fluid is injected into the skin, a blister appears at the injection site, surrounded by a reddened area and sometimes infiltrate.