In adults, FMD is not very lethal but results in production losses and trade impacts.

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Multiple Choice

In adults, FMD is not very lethal but results in production losses and trade impacts.

The main idea here is that foot-and-mouth disease in adult livestock tends to cause widespread economic harm rather than high mortality. In adults, the virus often leads to illness with fever, lameness, and vesicular lesions, but death is not common. The real impact comes from production losses—reduced milk yield, slower growth, weight loss, and higher abortion rates in pregnant animals—and from trade disruptions, since many countries impose quarantines, movement restrictions, and export bans to control the spread. So the best description is that it is not very lethal but causes production losses and trade impacts. The other statements don’t fit because they either imply high lethality, which is inconsistent with adult FMD, or they focus on limited clinical signs (like only a mild fever) or on calves alone, ignoring that adults are affected and contribute to the economic burden.

The main idea here is that foot-and-mouth disease in adult livestock tends to cause widespread economic harm rather than high mortality. In adults, the virus often leads to illness with fever, lameness, and vesicular lesions, but death is not common. The real impact comes from production losses—reduced milk yield, slower growth, weight loss, and higher abortion rates in pregnant animals—and from trade disruptions, since many countries impose quarantines, movement restrictions, and export bans to control the spread. So the best description is that it is not very lethal but causes production losses and trade impacts.

The other statements don’t fit because they either imply high lethality, which is inconsistent with adult FMD, or they focus on limited clinical signs (like only a mild fever) or on calves alone, ignoring that adults are affected and contribute to the economic burden.

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