biohazard

abstract agent avian background bacteria beware bin biohazard biological biology bird black care caution center centre chemical computer concept danger dangerous design dirty disaster disease emergency environment environmental epidemic flu garbage germ germs h7n9 hack hacker hacking harm harmful healthcare icon illness industry infection infectious influzena lab laboratory management medical medicine micro microorganism organism pandemic pollutant polluted pollution red research risk rubbish science sign spill substance swine symbol symbols toxic toxin trash trojan unhealthy virus war warfare warning waste