Ключевые слова: 3d rendering, ban, barbed wire, biohazard, block, border, caution, closed, closure, contagious, control, coronavirus, covid19, danger, dangerous, epidemic, epidemy, fence, flag, hazard, health, health care, healthcare, infection, infectious, isolation, luxembourg, luxembourgian, no entry, no way, outbreak, pandemic, prevent, prohibit, prohibition, protect, protection, quarantine, restrict, restriction, security, sign, sky, stop, virus, warn, warning,