Recall, Clade X and Operation Warp Speed were on May 15, or 15/5.
‘there was no vaccine available’ = 155
Coronavirus = 155

This supposed mistake happened May 12, 2022, the 132nd day of the year.
United States of America = 132
Vaccine = 132

It looks like it is the latest senile Joe Biden joke.

Biden = 34

https://www.cnn.com/2022/05/13/politics/fact-check-white-house-no-vaccine-available-tweet/index.html