Which group of organisms are cited as causing sudden death in animals and considered agroterrorism risks?

Which group of organisms are cited as causing sudden death in animals and considered agroterrorism risks?

• A. Anthrax; Clostridium chauvoei; Leptospira spp.; all of the above
• B. Smallpox; Tularemia; Nipah virus
• C. Escherichia coli; Salmonella; Campylobacter
• D. Rinderpest; FMD; Avian influenza

Answer: (A)

Many livestock pathogens are singled out because they can cause abrupt, fatal disease in animals and are viewed as high-risk for deliberate release. Anthrax is the classic example: Bacillus anthracis forms durable spores that persist in the environment and can trigger rapid septicemia and sudden death in grazing livestock, making it a well-known agroterrorism concern. Clostridium chauvoei, the agent behind blackleg, is another notorious cause of sudden death in cattle; its spores lie in the soil and outbreaks can progress rapidly with gas formation and systemic toxicity. Leptospira species, while often linked to kidney and liver disease, can also cause acute, fatal infections in animals under certain circumstances, contributing to their designation as pathogens of concern in an agroterrorism context. The combination of these three—anthrax, C. chauvoei, and Leptospira spp.—fits the pattern of agents cited for sudden death in animals and for which there is established recognition of agroterrorism risk due to their impact on livestock health and potential for deliberate misuse. Other groups listed either emphasize human-tropic viruses or common enteric bacteria; they do not align as consistently with the specific pattern of abrupt animal fatalities and agroterrorism risk that this option highlights.

Many livestock pathogens are singled out because they can cause abrupt, fatal disease in animals and are viewed as high-risk for deliberate release. Anthrax is the classic example: Bacillus anthracis forms durable spores that persist in the environment and can trigger rapid septicemia and sudden death in grazing livestock, making it a well-known agroterrorism concern. Clostridium chauvoei, the agent behind blackleg, is another notorious cause of sudden death in cattle; its spores lie in the soil and outbreaks can progress rapidly with gas formation and systemic toxicity. Leptospira species, while often linked to kidney and liver disease, can also cause acute, fatal infections in animals under certain circumstances, contributing to their designation as pathogens of concern in an agroterrorism context.

The combination of these three—anthrax, C. chauvoei, and Leptospira spp.—fits the pattern of agents cited for sudden death in animals and for which there is established recognition of agroterrorism risk due to their impact on livestock health and potential for deliberate misuse. Other groups listed either emphasize human-tropic viruses or common enteric bacteria; they do not align as consistently with the specific pattern of abrupt animal fatalities and agroterrorism risk that this option highlights.