I think this is a good question. Here are some random observations on Japan: 1. Japan, Tokyo area in particular, is crowded but clean and neat. 2. The Japanes

I think this is a good question. Here are some random observations on Japan: 1. Japan, Tokyo area in particular, is crowded but clean and neat. 2. The Japanese, contradicting western prejudice, are not particular healthy. Lots of heavy drinking and smoking. 3. The Japanese never did a China travel ban. Lots of trade with and tourism from China. I personally guess the answer to the question is that they did very good testing and contact tracing wrt. COVID19 and do not have the same testing bottlenecks as other countries.