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

Sinovac vaccine efficacy against Omicron increases following mRNA booster, Yale study finds

A new study suggests the globally popular vaccine produces no neutralizing antibodies against the Omicron variant.

Pfizer effectiveness against household transmission is reduced by Delta, Yale study finds

A recent study at the Yale School of Public Health looked at the effectiveness of the Pfizer vaccine in preventing household transmission, using data from Israeli cases.

Yale researchers develop wearable COVID-19 exposure detection device

In a recent study, researchers from the School of Public Health, the School of Engineering and Applied Science and the School of Medicine collaborated to create a device that detects potential COVID-19 exposure.

Joint Yale and Harvard study shows people may be infectious beyond five-day isolation

Researchers at the Yale School of Public Health and Harvard T.H. Chan School of Public Health showed that the Omicron variant might be infectious for longer than previously believed and prompted discussion around isolation policies in new preprint.

SPH student advocates for COVID-19 screening in K-12 schools nationwide

A student at the Yale School of Public Health is working in collaboration with the U.S. government to support COVID-19 screening programs nationwide.

Yale study finds global wealth disparities lead to inequities in vaccine access

A recent study conducted by researchers at the Yale School of Medicine reveals that high-income countries have received greater access to COVID-19 vaccines than low- and middle-income countries, likely due to failures in vaccine delivery and a tendency of private vaccine manufacturers to prioritize nations that can pay a higher premium for doses.

COVID-19 nasal spray vaccine in the works at Yale

A new Yale study is investigating the use and effectiveness of a potential nasal vaccine technology that could help put an end to the pandemic.

First case of Omicron COVID-19 variant detected in Connecticut

The first case of the Omicron variant has been reported in the state of Connecticut. Health care experts believe there are more cases in Connecticut which have not yet been detected.

Yale scientist co-chairs Lancet Commission, publishes vaccine hesitancy report

A new Yale co-led report in The Lancet examines the current state of COVID-19 vaccine refusal and acceptance, as well as strategies for addressing vaccine hesitancy in the United States.

Yale scientists identify remdesivir resistance in immunocompromised COVID-19 patient

Researchers at the Yale School of Public Health and the School of Medicine identified a SARS-CoV-2 remdesivir resistance mutation in an immunocompromised patient.

COVID-19 cases rise in Yale and New Haven

In recent weeks, COVID-19 cases have steadily risen within Yale University and the greater New Haven area.