Given the abundance of readily available, free, effective (albeit imperfect) vaccines for many months, why are we seeing a surge in COVID cases and hospitalizations? Let's examine the three primary factors that dictate the severity of an outbreak of a viral illness.
As the Biden Administration's booster shot roll out approaches, we have plenty of evidence that the primary COVID vaccines are still very effective, a growing number of experts say, but very little data to justify widespread use of boosters. This kind of open policy debate is exactly what we need.
Despite its higher transmissibility, research continues to show that the authorized COVID-19 vaccines protect against the Delta variant. The latest evidence comes to us from the UK.