Here's one of the higher-profile examples:

https://www.cbsnews.com/news/coronavirus-kills-chinese-film-...

> Chang's father, mother and sister also died from the disease, Chinese financial news outlet Caixin reported. His father first exhibited symptoms of the coronavirus on January 25, but was turned away at hospitals because of a lack of beds, leaving him to fight the disease at home. He died days later, followed by Chang's mother, who also succumbed to the illness.

> After caring for their parents, Chang and his sister were infected with the coronavirus; according to Caixin, Chang died on February 14, and hours later, so did his sibling. Chang's wife also contracted the virus and remains in serious condition.

I've also heard of some totally unconfirmed posts on Weibo, WeChat, etc. with similar stories of entire families being infected and stuck at home without treatment, but those are of course just rumors.

Completely speculating here but this specific case sounds like a bad luck situation in which the family in question had an extreme genetic susceptibility to suffering the virus at its worst. As other comments have pointed out (and the data so far seems to back) the vast majority 81%+ of cases are fairly mild or even asymptomatic and the elderly are those who suffer the higher 2%+ mortality rates (based on what I've read, the mortality rate adjusted for younger age groups is roughly 0.2% or less.)

Except, of course, in the example given, the two parents won't share any genetic material (coming from different families originally) and neither will the son and his wife.

Of course, only if the two parents really are coming from different families originally...

if you give a million monkeys a typewriter and wait a million years, you're bound to get all works of Shakespeare by chance alone. yes, bad luck, but the fact it happened illustrates the scale.

No, I think this only applies to an infinite amount of monkeys or you wait an infinitely long time.

Infinite != million years.

> if you give a million monkeys a typewriter and wait a million years

You'll have faeces and dead monkeys everywhere.

Lets assume you have a million monkeys pressing 10 keys per second for 1 million years.

You'd get somewhere in the region of 10^21 letters, or

Lets ignore punctuation, numbers, capitals etc, and assume there's just a choice of 26 letters

You'd be insanely lucky to find "all the world's a stage" somewhere in there.

He's just doing his take on probability not literally. That's like if I asked you: How many second are in a year?