More than 1.5 million COVID-19 vaccines have been administered in suburban Cook County. While the pace of vaccinations is ramping up, infections are rising, keeping contact tracers busy doing vital work to stop the spread of the virus, officials say.

The U.S. on Tuesday recommended a “pause” in use of the single-dose Johnson & Johnson COVID-19 vaccine to investigate reports of rare but potentially dangerous blood clots, setting off a chain reaction worldwide and dealing a setback to the global vaccination campaign.

Health officials said they were acting “out of an abundance of caution” following six cases of a rare and severe type of blood clot in individuals who got the one-dose Johnson & Johnson vaccine.

U.S. health officials on Tuesday recommended pausing vaccinations with J&J’s shot as they look into reports of six clots out of nearly 7 million doses given in the country.

Chicago employers would be required to give workers time off to get vaccinated against COVID-19 under a proposal advanced Tuesday by aldermen. Firms that violate the measure could face fines ranging from $1,000 to $5,000.

Islamic leaders are using social media, virtual town halls and face-to-face discussions to spread the word that it’s acceptable to be vaccinated for the coronavirus during daily fasting that happens during Ramadan, the most sacred month of the year for Muslims.

As students wrap up their spring semesters, colleges and universities have started announcing plans for the fall. We discuss the outlook for three area universities.

The vaccines currently being rolled out across the U.S. offer strong protection against variants. But new studies of experimental updates to the Moderna and Pfizer vaccines mark a critical first step toward an alternative if the virus eventually outsmarts today’s shots.

The expansion of vaccine eligibility to any Illinois adult regardless of their age, health or employment does not include the city of Chicago. However, Chicagoans can travel outside of the city to be vaccinated, officials said, though supplies are still limited.

In neighborhoods like La Villita and Back of the Yards, outreach workers are taking a ground-up approach to registering residents for vaccinations by meeting them in grocery stores and taquerias, and through texts and social media.

COVID-19 surges and vaccine eligibility expands. The vice president hits town. Strained relations between Mayor Lightfoot and Gov. Pritzker. And CTU may delay a return to class for high schoolers.

In early March, Chicago officials announced a COVID-19 vaccine program for homebound residents and their caregivers. But many people who signed up for the program had already been vaccinated by the time officials contacted them to schedule an appointment.

Experts say the vaccines are alike on what matters most: preventing hospitalizations and deaths.

Suburban Cook County residents ages 16 and older will be eligible for the COVID-19 vaccine beginning Monday, and while eligibility in Chicago doesn’t expand until April 19, Gov. J.B. Pritzker said adults in Chicago are also “absolutely welcome” to sign up at any state-run mass vaccination site starting Monday.

President Joe Biden said all adults in the U.S. should be eligible for the coronavirus vaccine by April 19. Mayor Lori Lightfoot said the city will follow suit. Our politics team takes on that story and more in this week’s roundtable.

A preliminary study from Johns Hopkins University finds that fewer than 20% of organ transplant patients generated an antibody response to their first dose of the COVID-19 vaccine. The research raises questions about vaccine protection for those patients and others with weakened immune systems.