Sunday - July 5, 2026
Penn State: Overestimating Population Immunity Contributed to US Delta Variant Surge
May 27, 2022
UNIVERSITY PARK, Pennsylvania, May 27 (TNSjou) -- Pennsylvania State University issued the following news on May 26, 2022:

By Katie Bohn

When the delta variant of SARS-CoV-2 hit the United States in summer 2021, it led to a larger-than-expected surge in cases, hospitalizations and deaths. New research suggests this lack of preparedness may have been partially due to overestimating the number of U.S. citizens who were immune or partially immune to the virus.

. . .

Targeted News Service Document Request Form

This document is available to you by e-mail if you complete the form below with relevant information. There may be a fee for this article or ongoing service of similar materials. We will be in touch shortly.

Click here for more information about our products