No new shipments for the one-shot Johnson & Johnson vaccine were included Thursday in the CDC’s weekly update on expected vaccine shipments. Shipments of the first and second doses of the two-shot Pfizer-BioNTech and Moderna vaccines will continue next week uninterrupted, according to the CDC shipment schedules. The last federal allocation of Johnson & Johnson vaccine for states was for this week. That was a paltry 600,000 doses. Weekly allocations have been running at more than 10 million for Pfizer shots and nearly 8 million for Moderna. The lack of new shipments of Johnson & Johnson’s vaccine may not have an immediate impact on individual states, which have some stockpiles, Marcus Plescia, chief medical officer for the Association of State and Territorial Health Officials, said Thursday. But it could cause concern if the shortage continues, he said.