Prion, Viral, Bacterial and Fungal Pathogens of Humans [VV210]; Diet Studies [VV110]; food products; human diseases; food quality; coronavirus disease 2019; cereal products; cereals; databases; food composition; foods; guidelines; hygiene; meat products; methodology; milk; milk products; nutrients; vegetables; man; Severe acute respiratory syndrome coronavirus 2; Serbia; Homo; Hominidae; primates; mammals; vertebrates; Chordata; animals; eukaryotes; Severe acute respiratory syndrome-related coronavirus; Betacoronavirus; Coronavirinae; Coronaviridae; Nidovirales; positive-sense ssRNA Viruses; ssRNA Viruses; RNA Viruses; viruses; Balkans; Southern Europe; Europe; Mediterranean Region; upper-middle income countries; very high Human Development Index countries; SARS-CoV-2; data banks; recommendations; methods; dairy products; Srbija; vegetable crops