Thank god? How about thank the scientists, biochemists and doctors who developed the vaccine, along with the administrators who are managing the logistics of distribution?
Amazing how many more victims of disease god is miraculously able to cure when science, medicine and technology make it so.
Why was god unable (or unwilling) to cure these diseases until science came along and did it?
And if he was able to cure those diseases but just didn’t, then what kind of loving god is that?