1. Any febrile illness with oral temperature &gt, 100°F within 3 days prior to randomization. <br/ >2. Subject with past history of COVID-19 infection. <br/ >3. Pregnant and / or lactating female subjects. <br/ >4. Presence of any illness requiring hospital referral. <br/ >5. Any confirmed or suspected immune-deficient condition based on medical history and <br/ >physical examination and a family history of congenital or hereditary immunodeficiency <br/ >or Individuals on immunosuppressant&#39,s as Azathioprine, Cyclosporine, Mycophenolate <br/ >etc. <br/ >6. History of allergic reactions or anaphylaxis to Mw or its component.

1. Any febrile illness with oral temperature &gt, 100°F within 3 days prior to randomization. <br/ >2. Subject with past history of COVID-19 infection. <br/ >3. Pregnant and / or lactating female subjects. <br/ >4. Presence of any illness requiring hospital referral. <br/ >5. Any confirmed or suspected immune-deficient condition based on medical history and <br/ >physical examination and a family history of congenital or hereditary immunodeficiency <br/ >or Individuals on immunosuppressant&#39,s as Azathioprine, Cyclosporine, Mycophenolate <br/ >etc. <br/ >6. History of allergic reactions or anaphylaxis to Mw or its component.

N/A

N/A

1. Any febrile illness with oral temperature &gt, 100°F within 3 days prior to randomization. <br/ >2. Subject with past history of COVID-19 infection. <br/ >3. Pregnant and / or lactating female subjects. <br/ >4. Presence of any illness requiring hospital referral. <br/ >5. Any confirmed or suspected immune-deficient condition based on medical history and <br/ >physical examination and a family history of congenital or hereditary immunodeficiency <br/ >or Individuals on immunosuppressant&#39,s as Azathioprine, Cyclosporine, Mycophenolate <br/ >etc. <br/ >6. History of allergic reactions or anaphylaxis to Mw or its component.

1. Any febrile illness with oral temperature &gt, 100°F within 3 days prior to randomization. <br/ >2. Subject with past history of COVID-19 infection. <br/ >3. Pregnant and / or lactating female subjects. <br/ >4. Presence of any illness requiring hospital referral. <br/ >5. Any confirmed or suspected immune-deficient condition based on medical history and <br/ >physical examination and a family history of congenital or hereditary immunodeficiency <br/ >or Individuals on immunosuppressant&#39,s as Azathioprine, Cyclosporine, Mycophenolate <br/ >etc. <br/ >6. History of allergic reactions or anaphylaxis to Mw or its component.