Amid Slow Vaccine Deliveries, Desperate E.U. Nations Hunt for More Countries eager to augment the troubled E.U. buying program are eyeing offers from each other, from Russia and China, and from private brokers, some of whom are fraudsters. A patient receiving a coronavirus vaccine in Gdansk, Poland, last month. The country gave up a chunk of its expected Moderna vaccine quota, reasoning that it would not come soon enough to make much difference.Credit...Bartosz Banka/Agencja Gazeta, via Reuters Published Feb. 26, 2021Updated March 4, 2021 BRUSSELS — In vaccine-hungry, cash-rich Europe, the hunt for more doses has nations trading with each other, weighing purchases from Russia and China, and fielding offers from middlemen ranging from real to outright frauds.