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

It’s in our sewage: tracking “low rumble” of COVID-19 cases

For the past two years, a Yale team has conducted weekly analyses of New Haven’s wastewater as a reliable early-warning measure of COVID-19’s trajectory and surges.

Yale researchers find certain immune cell types are predictive of COVID-19 mortality

Yale researchers applied Multiscale PHATE, a tool which was developed at Yale, to immune cell samples and found that the abundance of certain cell types can predict COVID-19 patient mortality with 83 percent accuracy.

New Yale study finds reduced accessibility to COVID-19 testing for marginalized groups

Yale MD-PhD student leads study into COVID-19 testing availability for Black, Latinx and Indigenous communities during the first wave of the pandemic.

Two COVID-19 vaccine doses for every person could save over a million lives, Yale study finds

Researchers at Yale and several other institutions modeled the cost and effect of higher COVID-19 vaccination in developing countries.

New nasal vaccine could provide protection against COVID-19 infection, Yale study suggests

A new intranasal vaccine developed by the Iwasaki Lab at Yale shows promise in preventing COVID-19 infection in mice.

Yale-developed saliva test offered at two New Haven sites

The state of Connecticut has decided to utilize the School of Public Health’s SalivaDirect testing initiative at two state testing locations in New Haven.

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.