S1 Ep36: Looking Back At Two Years

Flattening the curve" means slowing a virus's spread to prevent healthcare system strain. This is achieved through measures like handwashing, masking, and physical distancing, practices recommended by the CDC since 2007 for pandemics. These measures successfully slowed COVID-19 in Oregon, leading to a relatively flat curve. "Zero COVID" countries like China and New Zealand also saw success with early, strict measures. Studies show these actions prevented millions of U.S. and global cases. Reopening in April-May 2020 led to surges in some states, but Oregon, with its more cautious approach, was not among them. However, indoor activities in fall/winter and essential workers' inability to work from home contributed to a later surge. Vaccines, initially limited, prioritized healthcare workers. By April 2021, most adults were eligible. A spring 2021 surge occurred due to reopening, loosened restrictions, increased travel, pandemic fatigue, and the more transmissible Alpha variant. Despite this, Oregon saw declines in cases, hospitalizations, and deaths with rising vaccination rates until the Delta variant emerged. This showed vaccines worked and variants could drive surges, while reinforcing the effectiveness of early precautions. Oregon reopened on June 30, 2021, after nearly 70% of adults were vaccinated. The Delta surge followed, a variant twice as transmissible as the original strain and more severe. Low vaccination rates in some groups exacerbated this. Unvaccinated individuals had six times higher case rates than fully vaccinated people. Research later suggested Delta could evade vaccine immunity, highlighting the evolving understanding of COVID-19. Boosters are an example of changing recommendations based on new data showing vaccine effectiveness wanes. Data shows boosters improve protection, with unvaccinated individuals having significantly higher case rates than boosted individuals. Omicron cases declined since January, due to continued precautions like masking, boosting, and vaccinating children. This contributes to Oregon's low COVID-19 case and death rates nationally. While statewide masking requirements lift March 31, counties and schools will decide on continued masking. Masking remains recommended for the unvaccinated, immunocompromised, high-risk individuals, and those living with high-risk individuals. Two years into the pandemic, science confirms precautions work and vaccination (including boosters) offers the best protection. Everyone 5 and older should be vaccinated, and eligible individuals 12 and older should get a booster. Specific booster recommendations exist for the immunocompromised and Johnson & Johnson recipients. Consult a healthcare provider for vaccine concerns.