It is the Year of the Water Rabbit in China. Last happened in 1963. Other notable happening in 1963 was JFK assassination.
Interdasting.
https://people.com/human-interest/year-of-the-rabbit-lunar-new-year-everything-to-know/
Anon is correct about the extreme cold storage originally required for the CoVid vaxx.
https://www.verywellhealth.com/covid-19-vaccine-temperature-storage-requirement-5091841