coronavirus on a futuristic background.

2019 2019nc0v 2019ncov abstract acute alert background bacteria banner biohazard biology card causes caution china chinese concept contamination coronavirus cov cover danger deadly disease epidemic flu flyer futuristic gradient health illness illustration infection influenza layout masked medical medicine modern novel outbreak people pneumonia protect protection pulmonary quarantine respiratory sars science severe sickness space syndrome template themselves type vaccine vector virus wallpaper wuhan