parasitic organisms 4 [vynechat] parazitické organizmy 4 [vynechat] parasite and host 2 [vynechat] parasitic animals 2 [vynechat] parazit a hostiteľ 2 [vynechat] parazitické živočíchy 2 [vynechat] antibiotics 1 [vynechat] antibiotiká 1 [vynechat] bacteria 1 [vynechat] baktérie 1 [vynechat] blchy 1 [vynechat] fleas 1 [vynechat] health protection 1 [vynechat] hlísty 1 [vynechat] human-animal relationships 1 [vynechat] nemathelminthes 1 [vynechat] ochrana zdravia 1 [vynechat] pandemy 1 [vynechat] pandémie 1 [vynechat] parasitic diseases 1 [vynechat] parazitárne choroby 1 [vynechat] viruses 1 [vynechat] vírusy 1 [vynechat] človek a zviera 1 [vynechat]