Not in my country. In the Czech Republic, staff and clients at care homes (about 13,000 people) were tested for antibodies. 38 of them had antibodies, which is approximately 0.3%. The population of my country is about 10 million people and we have about 7,000 reported cases, which is 0.07% of the population. It would mean that the real number of exposed people is 4-5 times the number of reported cases.
Another testing of 27,000 people is underway, and we should know the results in early May.
It may have hit your country later than the US. the positive rate is significantly higher here
Check in for an update in May.
The antibody tests have about a 1.4% false positive rate. Be careful about accepting the antibody test results as accurate.