The "dip" people are talking about in pneumonia cases is caused by the lag in reporting of deaths through the CDC.

Here is a chart of every CDC pneumonia report over time.

There is always a dip.@ScottAdamsSays @balajis @DellAnnaLuca @chambersallan pic.twitter.com/66ERyJ4fZf

— Tyler Morgan (@TylerMorganMe) April 8, 2020