asymptomatic

adj

1. (not-comparable)Not exhibiting any symptoms of disease, as for example in a case which is subclinical (“without signs detectable by physical examination or laboratory test”).

noun

1. A person or an animal that exhibits no symptoms of disease.

   “After a 10-day observation period, group 1 was divided into subgroup 1A (symptomatics) and subgroup 1B (asymptomatics).”

   “[S]uch a high adult prevalence of parasites emphasises the relevance of the adult malaria parasite reservoir on the transmission of disease in both children and adults and it supports the need for further consideration and research evaluation of treatment of asymptomatics, including approaches such as intermittent screening and treatment (IST) as part of an integrated malaria control programme, if malaria elimination is to be achieved.”

2. Preceded by the: people or animals that exhibit no symptoms of disease regarded collectively.

   “At the end of the observation period, those who are still symptomatic require second-line treatment, whereas the asymptomatic are discharged.”