coronavirus alert concept with a biohazard sign and a question `how well prepared are countries for a pandemic?`on a barbed wire k

2019 alert are attention background bacteria barbed biohazard caution china chinese clouds concept contagion contamination control corona coronavirus countries covid covid19 danger dangerous death disease epidemic fence global health how industrial industry infected infection infectious kaleidoscope medical ncov organization outbreak pandemic pneumonia prepared prevention prohibition protect protection quarantine question respiratory risk safety sign symbol syndrome vaccine virus warning well wire world