The following is my summary from one of the sources:
https://www.yahoo.com/news/yorks-virus-death-toll-falls-162201152.html
New York reported its lowest number of daily COVID-19 deaths in weeks on Friday.
The state said there were 422 deaths Thursday. That's the fewest since March 31, when it recorded 391 deaths. More than 16,000 people have died in the state from the outbreak.
The total number of people hospitalized statewide continues to drop slowly, hitting 14,258, though the number of new patients coming into hospitals is basically flat at around 1,300, Cuomo said.
New York has begun to increase the amount of testing, conducting 34,736 on Thursday, compared to around 20,000 usually. Cuomo administration officials cite an executive order directing private and public labs to work with the state to prioritize coronavirus testing. The state hopes to conduct as many as 40,000 tests a day.
Other information related to my above comment:
(1) On Friday, the new cases in New York State is +8,864 (The second day of increasing and has increased quite a lot).
https://www.worldometers.info/coronavirus/country/us/
(2) New York: the numbers shown below include probable deaths (and, consequently, probable cases for the same number) as reported by New York City.
https://www.worldometers.info/coronavirus/country/us/
My comment has combined the above information as well as other information. Here is
one example of my thinking:
Since the new cases and deaths in New York City included
probable cases and probable deaths, so the number of deaths may be over-reported. Hence the number of the deaths have been improved even more than the numbers said.
By the way, someone has asked what kind of antibody tests I was talking about. IgM or IgG? USA tried to use to antibody tests to screen out people who has antibody so that the Americans can determine when and how to re-open their country. So, the antibody tests is IgG.