About this data

The News' COVID-19 dashboard is based on data from the Yale COVID-19 Statistics webpage, which reflects data for both Yale's asymptomatic testing program as well as tests given to symptomatic students. Yale's data is generally delayed by two to three days, and the News updates our dashboard each time Yale publicly releases its latest counts. Yale has de-duplicated these numbers so that students who test positive multiple times are only counted the first time, and so that total tests given reflects the number of unique individuals tested on a single day. The News' data begins on January 8th, 2021.

Visualizations by Omar Chishti and Daniel Kim.

Read the News' latest reporting

Eligibility for COVID-19 vaccine booster shots expands

After the CDC issued new recommendations for booster shots for COVID-19 on Thursday, Yale expanded eligibility for booster shots for some recipients of the Moderna, Pfizer and Johnson & Johnson COVID-19 vaccines.

YNHH terminates 94 employees who refused to receive COVID-19 vaccinations

On Oct. 18, Yale New Haven Health’s human resources department sent notices of termination to 94 employees who refused to comply with a COVID-19 vaccine […]

Looking forward: School of Public Health professors weigh in on the future of the pandemic

After nearly two years of life upended by the coronavirus pandemic, four of Yale’s public health experts analyzed lessons learned to end the current pandemic […]

Yale study finds most SARS-CoV-2 variants neutralized by mRNA vaccines

Yale scientists published a novel study demonstrating that messenger RNA vaccines, such as Pfizer’s and Moderna’s, cultivate a vigorous immune response to most variants of […]

Select Yale community members now eligible to receive Pfizer booster shot

On Sept. 27, in a university-wide email, CEO of Yale Health Paul Genecin announced that Yale community members aged 65 and older or at increased […]

Photo of the Yale Health building
COVID-19 patient volume at YNHHS down by 45 percent over last two weeks

As the Yale New Haven Health System continues to monitor breakthrough infections, noting low infection rates among the vaccinated, it has also seen a significant decrease in COVID-19 patients.

First randomized trial on masking affirms efficacy, Yale study says

The effectiveness of masks in preventing COVID-19 has been supported by the results of a 300,000-person randomized trial in Bangladesh led by two School of Management researchers.

Yale study examines effect of COVID-19 antibodies

Scientists at the Yale School of Medicine conducted a study to investigate the effect of T-cells and B-cells in adaptive immunity and what that could mean for future treatments against COVID-19.

Low incidence of breakthrough infections at YNHHS highlights importance of COVID-19 vaccines

In a Thursday press conference, Yale New Haven Health system officials explained that approximately six percent of patients who test positive for COVID-19 and are symptomatic are fully vaccinated.

YSPH study examines high COVID-19 repeat positive test rates in nursing homes

A Yale School of Public Health study conducted in collaboration with the state found that some nursing home residents experienced repeat positive COVID-19 tests.

Researchers at the medical school image live COVID-19 infection in mice

Scientists at the medical school used microscopic technology to image COVID-19 infection in mice, which will hopefully aid in developing treatments.