lockdown poster with heart concept

art attack awareness background bacteria bacterial bacteriological blue cartoon china close corona coronavirus defense design diagnosis disease edge epidemic epidemiology fever flat flu golden hand health heart honor humanillness icon illustration infect infection influenza isolated life lock lockdown lung medical medicine microbe microbiology pandemic password pathogen pneumonia poster privacy protect protection quirky safe science secure security shield sick socialmedia steel symbol vector viral virology virus warning web wuhan wuhanvirus