But what about long covid? The numbers in this article are based on _symptomatic_ breakthroughs, not _all_ breakthroughs and do not include any measurement of how many people had lingering symptoms that showed up later. If they do not measure asymptomatic breakthroughs and lingering symptoms through random sampling and surveys then they do not know how many vaccinated people are spreading the virus and can not give advice on whether vaccinated people need to take precautions to protect others. Without enough random genetic testing new variants will be missed early on. They also have little idea if the virus is lingering in some people and creating new mutations (does long covid breed variants? I have heard of no studies of this.) It is not even clear here if everyone who died was even tested, so they may be undercounting deaths. Seems like our new approach here is "if the ER's fill up then panic, but everything is cool till then". It is really obvious from the JHU data that the USA is in the midst of another wave. Maybe it is less deadly but the JHU data also shows deaths starting to rise in most states. You can see these trends in the NYTimes data as well.