BUCHAREST, Romania — Romania’s national vaccination committee chief says Johnson & Johnson vaccines will be distributed to vaccination centers by next week.

Last week, Romania received a batch of 60,000 J&J vaccine shots but paused distribution as it waited for safety confirmation from the European Medicines Agency following a small number of rare blood clots.

“Most likely they will be used in drive-through centers, mobile centers and can be allocated to family doctors. The vaccination process will be much easier because it will be a single dose,” says Valeriu Gheorghita, the vaccination leader.

The announcement came the same day Romania launched its first mobile vaccination center in Ilfov County near the capital Bucharest, where appointments will not be needed. Authorities aim to roll out mobile centers across the country.

So far, Romania has administered more than 4.3 million vaccine doses to its population of more than 19 million.