Smith D D, Frenkel J K
J Parasitol. 1978 Apr;64(2):315-9.
To assess the roles of the German cockroach (Blatella germanica) and the American cockroach (Periplaneta americana) in the transmission of Sarcocystis muris and of 3 other coccidia of cats-Toxoplasma gondii, Isospora felis, and Isospora rivolta, cockroaches exposed to feces containing these coccidia were periodically fed to mice, as was a portion of the fecal matter. Sarcocystis muris sporocysts, which in feces remained infectious for at least 20 days, were also transmitted to mice by P. americana for at least 20 days and by B. germanica for 5 days after exposure to infectious feces. Toxoplasma gondii oocysts were transmitted by P. americana intermittently up to 10 days, but by B. germanica only immediately after exposure to feces. Oocysts of 2 species of Isospora, when associated with fecal matter, remained infectious for 20 days. Those of I. rivolta were transmitted by both cockroach species for 10 days, but I. felis was transmitted only by by B. germanica, and for only 2 days.
为评估德国小蠊（Blatella germanica）和美洲大蠊（Periplaneta americana）在鼠肉孢子虫以及猫的其他三种球虫——刚地弓形虫（Toxoplasma gondii）、猫等孢球虫（Isospora felis）和芮氏等孢球虫（Isospora rivolta）传播中的作用，将接触含有这些球虫粪便的蟑螂定期投喂给小鼠，一部分粪便也同样投喂给小鼠。鼠肉孢子虫孢子囊在粪便中至少20天仍具感染力，在接触感染性粪便后，美洲大蠊至少20天、德国小蠊5天能将其传播给小鼠。刚地弓形虫卵囊由美洲大蠊间歇性传播长达10天，但德国小蠊仅在接触粪便后立即传播。两种等孢球虫的卵囊与粪便接触时，20天内仍具感染力。芮氏等孢球虫的卵囊由两种蟑螂传播10天，但猫等孢球虫仅由德国小蠊传播，且仅传播2天。
