Researchers from Flinders University in southern Australia have found that many patients with corona virus who have no symptoms, known as the silent vectors of the virus, suffer from anemia and an olfactory loss.
According to a report published in the newspaper "Medical Xpress", the virus causes the swelling of the mucous membrane more than other viruses in this category of carriers of the virus.
Specialists believe that these symptoms can be inferred to detect patients who "get sick without symptoms".
The researchers monitored that anemia may be the only symptom to appear in those with this infection.
Professor Simon Carney, a professor at the Australian University of Flinders, said: "Those who are HIV-positive often have no suspects, which can explain why the disease is spreading rapidly in many countries."
According to him, he suffers from an olfactory loss in one in three people with coronavirus in South Korea.
Carney said that British doctors believe that anemia is an important symptom, that may indicate that the patient is a carrier of the virus "without symptoms".