Covid-19: How Effective Are Vaccines Against the ‘Delta Variant’

Here’s how efficient Covid-19 shots are against the Delta variant. So far, four real-world studies have been conducted on the leading shots. All of them seem to agree that the AstraZeneca and the Pfizer jabs took the lead. As rising coronavirus infections force some countries to reimpose restrictions, scientists and drugmakers are racing to answer a crucial question: how well do the current vaccines protect against the Delta variant? On one point, most observers agree. The leading shots, studies show, still offer strong protection against severe disease and hospitalization. “Real-world effectiveness studies with a number of vaccines show good protection…