SANT JOAN DESPÍ, Spain — A senior European Union official says 55 million doses of Johnson & Johnson’s COVID-19 vaccine will be delivered to EU member states in the second quarter of this year, starting next month.

The EU’s internal market commissioner, Thierry Breton, says the bloc will receive another 120 million doses of the single-shot jabs between July and September.

Breton spoke Friday during a visit to a plant in northeastern Spain where the vaccine developed by the pharmaceutical company Janssen, a subsidiary of Johnson & Johnson, is being bottled. It is one of four vaccines approved for use in the EU.

Across the bloc, 52 factories are currently churning out vaccines, according to Breton. He says the EU will be producing 2 or 3 billion doses by end of year, making it the world’s top vaccine manufacturer, and allow 70% of the EU population to be inoculated by mid-July.