Ключевые слова: 3d, background, ball, banner, barrier, blank, bubble, circle, concept, container, copy, covid19, defense, effect, empty, energy, field, firewall, force, futuristic, glass, glossy, glow, glowing, horizontal, illustration, immune, infection, mockup, pattern, plastic, poster, protect, protection, protective, purple, realistic, round, safety, science, security, shape, shield, space, sphere, technology, transparency, transparent, virus,