Biden says health officials exploring whether to move up booster interval - CNN

1. Biden says health officials exploring whether to move up booster interval  CNN
2. Biden says U.S. health officials are considering Covid booster shots at 5 months, moving up timeline of third shot  CNBC
3. When Will You Need a Covid Booster? Biden Considering Jab After 5 Months  Bloomberg
4. U.S. officials weigh shorter timeline for COVID booster shots -Biden  Reuters
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source https://news.google.com/__i/rss/rd/articles/CBMiTmh0dHBzOi8vd3d3LmNubi5jb20vMjAyMS8wOC8yNy9wb2xpdGljcy9ib29zdGVyLXNob3QtaW50ZXJ2YWwtYmlkZW4vaW5kZXguaHRtbNIBUmh0dHBzOi8vYW1wLmNubi5jb20vY25uLzIwMjEvMDgvMjcvcG9saXRpY3MvYm9vc3Rlci1zaG90LWludGVydmFsLWJpZGVuL2luZGV4Lmh0bWw?oc=5