Please help me work this out. I work in the NHS (none clinical) and we were offered free anti-body blood tests around May I think. My manager and a colleague tested positive for having had the virus. Manager had horrendous cough in January that went on for weeks. Obviously not COVID as we are being told not circulating freely in the UK (London) at the time - but makes us wonder.... Other colleague who tested positive had loss of taste and smell symptoms in March - before this was an official symptom. Neither were actually tested at the time of showing symptoms as testing was not available at the time. Kept on working throughout and shared small office with two others, but not each other. Window shut as cold outside. Neither took any time off during period between March and antibody bloodtest and both continued to work from the office. If the virus is so infectious, why have the people who shared a small office not caught it or could it be that they did but were asymptomatic? Would they therefore not have developed antibodies? I'm really still puzzled by this result.