[lindaelane]

It sounds like your pneumonia could have been viral. Covid-19 is not the only corona virus. Its not possible you had Covid-19 in May 2019 because the virus first moved to humans in winter 2019. It is not likely, but possible, you had a different corona virus. Pneumonia is either viral or bacterial, or in some cases, first viral progressing to bacterial. You did well with prednisone. You family doctor can prescribe prednisone - I have continued lung infections - but I find I need to ask for it and I add I've done well on it before. Too much prednisone, too often, of course, causes very bad problems, so it is only for when you lungs (or other health conditions) are quite serious. Tests to see if you have had Covid-19 are not available yet for the general public, but will be. If you test positive, however, then you had the asymptomatic version, as it is impossible your May 2019 illness was Covid-19.