> Considering the potential neuroinvasion of SARS-CoV-2, antiviral therapy should be carried out as early as possible to block its entry into the CNS. Airway inhalation of antiviral agents will be the first choice at the early stage of infection, which will inhibit the replication SARS-CoV-2 in the respiratory tracts and lung and prevent from its subsequent neuroinvasion. It is also urgent to find effective antiviral drugs that can cross the blood-brain barrier. Moreover, corticosteroids, which are used frequently for severe patients, may have no treatment effect, but rather accelerate the replication of the virus within the neurons.

The full text mentions masks being particularly effective and inhaled antiviral meds that could slow the spread of the virus in airways. It also talks about the need for antiviral agents capable of crossing the brain-blood barrier. See the last 3 paragraphs of the full text.

Perhaps more aggressive early antiviral therapies?

This may sound very stupid, but...

As a sort of "vaccine", would it make sense to have people intentionally infected orally so they build up antibodies before it has a chance to spread to their brain?