He only got one dose that was AZ and had not got his second dose. The Delta variant is extremely contagious and assists to cause more hospitalizations including those that are younger. The Israeli studies (though there is a lack of the actual numbers provided) are showing that if you have the Pfizer, you will very likely stay out of hospital and it still offers 64 per cent efficacy to mild sickness from the Delta variant.
Like I said. If you don’t have the vaccine, enjoy the Delta variant.
Will do!