white planctomycetes cartoon character style having strange silent face

antibiotic aureus bacteria bacteriology bacterium biological biology cartoon character coccus cute electron emoticon emotion expression funny hushed illustration infection mascot medical medicine methicillin microbiological microbiology micrograph microorganism mum mute pathogen pathogenic pathology planctomycetes quiet replicating resistant reticent secret sensitive silenced silent smile staphylococcus staphylocossus superbug transmission vector