Publications by authors named "Abirami Balajee"
Objective: To estimate the effectiveness of messenger RNA (mRNA) booster doses during the period of Delta and Omicron variant dominance.
Design: We conducted a matched test-negative case-control study to estimate the vaccine effectiveness (VE) of three and two doses of mRNA vaccines against infection (regardless of symptoms) and against COVID-19-related hospitalisation and death.
Setting: Veterans Health Administration.
As of January 20, 2022, > 247,000 confirmed COVID-19 cases and 3,600 deaths were reported in Puerto Rico (PR). We interviewed participants aged ≥ 14 years in the Communities Organized to Prevent Arboviruses (COPA) study, a community-based cohort in PR, about COVID-19 vaccine intention from November 12, 2020, to June 25, 2021. We used univariate and adjusted analyses to identify participant characteristics associated with vaccine intention.
View Article and Find Full Text PDFObjective: To estimate relative effectiveness of the booster mRNA Covid-19 vaccination versus the 2-dose primary series for both Delta and Omicron variants with self-controlled study design.
Methods: We used the Veterans Health Administration (VHA) Corporate Data Warehouse to identify U.S.
Article Synopsis
- A study in a Georgia public school district analyzed how SARS-CoV-2 spreads among students and staff to help develop prevention strategies.
- During the study from December 2020 to January 2021, investigators identified 86 infected individuals and assessed over 1,100 of their close contacts, finding an 8.7% positivity rate among tested contacts.
- The findings revealed that indoor sports activities were the highest risk settings for transmission, underscoring the importance of staff vaccinations and proactive testing to mitigate spread, especially as many infected individuals showed no symptoms.