Which description matches the cardiac form of AHS in terms of incubation, signs, and mortality?

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Multiple Choice

Which description matches the cardiac form of AHS in terms of incubation, signs, and mortality?

The cardiac form is marked by a relatively long incubation period, about 7–12 days after infection, followed by fever and progressive edema, especially in the head and neck. The edema often involves the dorsal regions and facial spaces such as the supraorbital fossae, eyelids, and intramandibular space, and the overall outcome is a high mortality, around 50–70%. This combination of a longer incubation, specific edema sites, and substantial death rate best fits the cardiac form. The other descriptions either miss the facial/neck edema pattern, describe a shorter incubation with milder signs, or note no clinical signs at all, which don’t align with the cardiac form’s characteristic presentation.

The cardiac form is marked by a relatively long incubation period, about 7–12 days after infection, followed by fever and progressive edema, especially in the head and neck. The edema often involves the dorsal regions and facial spaces such as the supraorbital fossae, eyelids, and intramandibular space, and the overall outcome is a high mortality, around 50–70%. This combination of a longer incubation, specific edema sites, and substantial death rate best fits the cardiac form. The other descriptions either miss the facial/neck edema pattern, describe a shorter incubation with milder signs, or note no clinical signs at all, which don’t align with the cardiac form’s characteristic presentation.

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