“Despite our exclusion criteria, other confounding influences may have occurred as a result of inapparent inflammatory disease.”

“Chronic infection with S. stercoralis is often inapparent, but it can cause gastrointestinal, cutaneous, or pulmonary symptoms.”

“In animals, RVF may be inapparent in non-pregnant adults, but outbreaks are characterised by the onset of abortions and high neonatal mortality.”