happy smiley fusobacteria cartoon mascot with a gift box

award bacteria bacterial bacteriology bacterium benefit biological biology birthday bonus box cartoon character cute design emoticon emotion expression funny fusobacteria genetic gift giveaway giving happy icon illness illustration leptotrichia mascot microscope microscopic moniliformis morbific morphology organism pathogen pathogenic pathology phylogenetic reward ribbon science smile souvenir streptobacillus style system valentine vector