Capak told the national broadcaster HTV that the performance of the survey should take 10 to 14 days so as to provide a wider insight in the situation.
Experts at the institute and at Zagreb's hospital for infectious diseases are making preparations for the testing so that they can establish how much serological tests would be reliable.
Serological surveys are often used by epidemiologists to determine the prevalence of a disease in a population. These surveys are sometimes performed at random, anonymous sampling from samples taken for other medical tests or to assess the prevalence of antibodies of a specific organism or protective titre of antibodies in a population.
Capak thinks that yet not enough number of Croatians are immune to this infection to provide for "collective protection" against this novel virus. However, this will change for the better later, according to his explanation.