Experts Look at Why, Fully-Vaccinated People, Are Still Getting Infected With COVID-19.<br />Experts Look at Why, Fully-Vaccinated People, Are Still Getting Infected With COVID-19.<br />CNBC reports that so-called “breakthrough” COVID-19 cases <br />among those who are fully vaccinated continue to occur.<br />Experts note a number of reasons this is happening, including the highly-contagious Delta variant. .<br />First, none of the vaccines deployed in the U.S. or Europe are 100% effective at preventing infection.<br />CNBC also points out that it remains unclear how long immunity from coronavirus lasts following vaccination.<br />Preliminary data out of Israel published in late July <br />found that the Pfizer-BioNTech COVID-19 vaccine was <br />only 40.5% effective at preventing symptomatic disease.<br />Israel's Health Ministry reported that the data found that having two doses of the shot still provided strong protection against severe illness and hospitalization.<br />The same analysis also appeared to show a waning effectiveness <br />of the Pfizer-BioNTech shot, dropping over time. .<br />However, a different study in England found that the Pfizer-BioNTech vaccine was 88% effective against symptomatic disease caused by the Delta variant.<br />However, a different study in England found that the Pfizer-BioNTech vaccine was 88% effective against symptomatic disease caused by the Delta variant.<br />NBC News has found that at least 125,000 fully-vaccinated Americans have tested positive for COVID-19.<br />Of those, 1,400 fully-vaccinated individuals have died. .<br />NBC points out that the 125,682 breakthrough cases <br />represented less than 0.08% of the 164.2 million-plus people <br />who have been fully vaccinated since the start of the year
