Rashes and gastrointestinal symptoms are uncommon, although some patients experience diarrhoea.
One in five of those infected have to be admitted to intensive care, with at least one organ in difficulty, usually a mild case of cardiovascular failure. One in 10 requires assistance to breathe.
In many patients, higher levels of lactate dehydrogenase are often found; this is an enzyme whose presence in the blood usually indicates tissue damage to heart muscle or other organs, such as the liver. Patients also show evidence of aspartate aminotransferase, a catalysing enzyme whose presence is often used to diagnose the presence of hepatitis or damage caused by a heart attack.
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