Or the Hh blood type, which 1 in 10,000 people in India have.

或者 Hh 血型，在印度每 10,000 人中就有 1 人拥有这种血型。

The other way is to pronounce it, I think is more old-fashioned, with a: hh-- hh-- hh-- sound before.

另一种读法， 我觉得比较老套，前面带一个：hh-- hh-- hh--音。

WH- words can be pronounced with a " hh" sound before the W. It's not necessary, and it's not my preference.

WH-单词可以在W前发“hh”音，没必要，我也不喜欢。