No specific treatment but numerous symptomatic treatments are available. A cold may temporarily upset the mucosal cilia and predisposes to secondary invaders especially bacterial infections, eg. These may require antibiotic treatment. An infected person is infectious in the first two days of coryza. Colds are readily acquired from breathing room air from a room crowded with coldy people.
Colds are ubiquitous around the world except in very isolated communities.
The enormous diversity of cold-causing viruses essentially rules out a vaccine. Vitamin C and bacterial vaccines are unproven. Most adenoviruses grow easily in cell culture, and give rise to large intranuclear inclusions. Type Specific Antigen Can identify a specific type by neutralisation of infectivity or haemagglutination. They infect the mucous membranes of the eye, respiratory and gastro intestinal tract, occasionally urinary tract.