Internal Health Ministry data shows that 14 Israelis have been infected with COVID-19 a week after receiving a booster shot, Channel 12 news reports.

The network says 11 of those infected are over the age of 60 — two of whom have now been hospitalized — while the other three got their third dose because they are immunocompromised.

If confirmed in larger samples, the figures could cast doubt on the effectiveness of the booster shot, which Israel has started administering before major health bodies around the world have approved it.