Looks like that virus infection was a blessing in disguise. My cough and congestion was so bad, I went to the store and bought both Robitussin and a Colloidal Silver Throat Spray. Together they seem to be bringing back my singing voice. My voice is starting to sound almost as good as it did three years ago.
I hope this improvement is permanent. If it is, it will mean I can record more often and with better consistency — which means I can produce more recordings next year.
… got my fingers crossed