We still do not have a vaccine against the moronavirus. Those currently infected with it still support Trump.
There is some hope. It doesn't appear to be spreading. While those who have it may be incurable, there are very few new cases. This means that the number of affected people will slowly shrink, from natural causes if not an actual cure. There is evidence that the elderly are particularly susceptible to the moronavirus, given that demographic's support for Trump in 2016. The good news is that given their age, many of those folks won't be around in November.
There are no moronavirus test kits available, but you can easily tell if someone is afflicted. Avoid contact with such persons--the risk of contagion is low, but those afflicted with the moronavirus are irrational and often violent. Anyone walking down the street, waving his arms and screaming "MAGAMAGAMAGA" should be avoided by the public, and brought down by the police with a tranquilizer gun.
The moronavirus has contributed to the spread of the coronavirus, as those with the moronavirus support and encourage Trump's erratic and ineffectual efforts to deal with the coronavirus outbreak. That will result in hundreds, maybe thousands of preventable deaths, but the moronavirus has already caused several thousand such deaths.