“As per the Dutch Government ban on passenger flights from India that had come into force on April 26, 2021, has been lifted w.e.f 01 June 2021,” the India embassy here tweeted. However, there is still a European Union ban on non-EU travelers from countries where the coronavirus situation is considered very high risk.

Researchers at the Rockefeller University in the US analysed antibodies present in the blood of Covid patients, tracking the evolution of these molecules.