Sensationalist headline.

1. Sample size was 130

2. Hasn't been peer-reviewed

3. "What this will mean to herd immunity will require more data from other parts of the world," Huang Jinghe, the leader of the research team behind the report.

Only interesting part: Interestingly, the levels of antibodies patients produced seemed to correlate with their ages: Middle-aged and elderly recovered patients had higher levels of antibodies. Nine of the 10 of the patients who did not develop detectable levels of coronavirus antibodies were 40 years old or younger.