You can also consider the effects of reopening factories (like Tesla's Shanghai) on the spread of C19 and view the manufacturers' sanitary policies as successfu

You can also consider the effects of reopening factories (like Tesla's Shanghai) on the spread of C19 and view the manufacturers' sanitary policies as successful (in avoiding a rapid 2nd wave). I guess Musk talks about deaths (over thousands of employees) because it's the most reliable indicator, one that does not depend on, say, testing policies.