two seamless patterns with bacteria and viruses

abstract adenovirus adenoviruses animal bacilli bacillus background bacteria bacterial bacterium biology cell coli colorful cytomegalovirus danger design diagram disease ebolavirus epidemic flu germ germs health hepatitis herpes hygiene icon ill illness illustration immune immunity infect infection influenza latent life macro medical medicine micro microbe microbiology microbiome microorganism microorganisms microscope microscopic nature organism pandemic papillomavirus pathogen pattern primitive research rotavirus salmonella science seamless sick staphylococci streptococci streptococcus texture toxoplasma unhygienic vector viral virus wallpaper