Pfizer is A commercial enterprise so they have the incentive to make money 100% right. The efficacy of the vaccine weighing very quickly as this virus evolved and mutated it became pretty evident pretty fast that the the rate of Transmission in vaccinated people continue to go up. But look Pfizer didn't have another product to sell So it certainly makes sense for them to continue to sell their product And there is still good data That represents that there is some immune Response and some benefit in certain populations to continuing with vaccines.