Idle thoughts: some of the most effective anti-covid drugs are also anti-nematodes. Nematodes come in microscopic sizes. Why go to all the trouble of making nano lipid shells for the mRNA part if you could put it in a nematode that would reproduce itself and introduce that as an infective agent/Vaccine? You wouldn't want your victims taking the best anti-nematode medicine.
Idle thoughts: some of the most effective anti-covid drugs are also anti-nematodes. Nematodes come in microscopic sizes. Why go to all the trouble of making nano lipid shells for the mRNA part if you could put it in a nematode that would reproduce itself and introduce that as an infective agent/Vaccine? You wouldn't want your victims taking the best anti-nematode medicine.