As a result , a clutch of rival theories have blossomed , including the contention that an ebola-style virus or the anthrax germ were to blame .
结果一系列的相对理论都接踵而至，包括有关致病原因是埃博拉风格病毒还是炭疽病菌的争论。
Spurred by the anthrax hysteria of 2001 , the u. s.government has thrown billions of dollars into developing new equipment and technologies to detect chemical and biological warfare agents .
