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Carver Mead in his lab at Caltech.

Q&A: Carver Mead revolutionized computers. Can he do the same for physics?

Microelectronics pioneer Carver Mead of Caltech explains his journey from computer technology to fundamental physics.

Jacob Hopkins in his hospital room where he was deliberately infected with the coronavirus that causes COVID-19.

What it’s like to catch the coronavirus for the sake of science

LEIPZIG, GERMANY - JULY 01: Vials of the Pfizer/BioNTech Comirnaty vaccine against Covid-19 at a mass vaccination center on July 1, 2021 in Leipzig, Germany. Germany, where approximately 55% of the population have received a first dose and approximately 36% are fully vaccinated, has expanded its vaccinations to younger age groups. Meanwhile, although the infection rate has plummeted, authorities are becoming increasingly concerned over the spread of the Delta variant, which now accounts for half of new infections. (Photo by Jens Schlueter/Getty Images)

U.S. buys 105 million COVID vaccine doses for fall campaign

Erica Mancini, an accordionist, poses before taking the stage to perform in a Ukrainian avant garde jazz opera, Friday June 17, 2022, at Bohemian National Hall in New York. Mancini has suffered three COVID-19 infections: one at the beginning of the pandemic, one last year and one in May of this year. Medical experts warn that we'll be seeing more multiple reinfections given how long the pandemic is stretching on. (AP Photo/Bebeto Matthews)

A viral reprise: When COVID-19 strikes again and again

FILE - A health worker administers a dose of a COVID-19 vaccine during a vaccination clinic at the Keystone First Wellness Center in Chester, Pa., on Dec. 15, 2021. Government advisers are debating Tuesday, June 28, 2022, if Americans should get a modified COVID-19 booster shot this fall — one that better matches more recent virus variants. (AP Photo/Matt Rourke, File)

FDA advisors recommend updating COVID booster shot formula for fall

FILE - A vial of the Moderna COVID-19 vaccine is displayed on a counter at a pharmacy in Portland, Ore. on Dec. 27, 2021. U.S. health authorities are facing a critical decision: whether to offer COVID-19 booster shots this fall that better match the omicron variant even though the coronavirus already has spawned still more mutants. Moderna and Pfizer are testing updated booster candidates, and advisers to the U.S. Food and Drug Administration will debate Tuesday, June 28, 2022, if it’s time for a switch, setting the stage for similar moves by other countries. (AP Photo/Jenny Kane, File)

FDA grapples with whether to modify COVID vaccine for fall

FILE - A syringe is prepared with the Pfizer COVID-19 vaccine at a vaccination clinic at the Keystone First Wellness Center in Chester, Pa., Dec. 15, 2021. Pfizer says tweaking its COVID-19 vaccine to better target the omicron variant is safe and boosts protection. Saturday, June 25, 2022 announcement comes just days before regulators debate whether to offer Americans updated booster shots this fall. (AP Photo/Matt Rourke, File)

Pfizer says tweaked COVID-19 shots boost Omicron protection

FILE - A health worker administers a dose of a Moderna COVID-19 vaccine during a vaccination clinic at the Norristown Public Health Center in Norristown, Pa., Tuesday, Dec. 7, 2021. Moderna says its COVID-19 vaccine works in babies, toddlers and preschoolers. The company announced early findings from a study of children younger than 6 on Wednesday, March 23, 2022. (AP Photo/Matt Rourke, File)

Moderna COVID-19 shots now an option for older kids in U.S.

ALBUQUERQUE, NM - JUNE 21, 2022: Dr. Lisa Hofler, the clinical vice chair of the Department of Obstetrics and Gynecology at the University of New Mexico, discusses the procedure for getting a medication abortion to patient Autumn Brown as Brown's 3-year-old daughter plays on the floor at the Center for Reproductive Health on June 21, 2022 in Albuquerque, New Mexico. Brown has 5 children ages 2-14. She was under the 11 week threshold for a medical abortion.(Gina Ferazzi / Los Angeles Times)

As Roe vs. Wade falls, New Mexico braces for a steep rise of abortion seekers

The coronavirus known as SARS-CoV-2, shown in purple, infects a cell, colored in green.

COVID-19 Pandemic: News, Links & Resources

Health news, ideas, advice and commentary.

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Covid-19 Pandemic and the Coronavirus

Los Angeles, CA - June 21: Children's Hospital Los Angeles nurse Monica Lopez prepares to administer the Pfizer COVID-19 vaccine to Callum Diaz-Cheng, 3, son of CHLA Cardiologist Dr. Jennifer Su and one of the hospital's first children under five to receive the shot, on Tuesday, June 21, 2022 in Los Angeles, CA. (Wesley Lapointe / Los Angeles Times)

What’s the difference between the Pfizer and Moderna vaccines for the youngest kids?

Both Pfizer and Moderna are considered safe for kids of all ages, but here are a couple of differences that parents can consider.

FILE - In this March 2021 photo provided by Pfizer, vials of the Pfizer-BioNTech COVID-19 vaccine are prepared for packaging at the company's facility in Puurs, Belgium. According to a study published Thursday. June 23, 2022 in the journal Lancet Infectious Diseases, nearly 20 million lives were saved by COVID-19 vaccines during their first year, but even more deaths could have been prevented if global targets had been reached. (Pfizer via AP)

COVID-19 vaccines saved 20 million lives in first year, scientists say

Former White House Coronavirus Response Coordinator Dr. Deborah Birx testifies before the House Select Subcommittee on the Coronavirus Crisis on Thursday, June 23, 2022 in Washington. (AP Photo/Kevin Wolf)

Dr. Deborah Birx describes a Trump White House divided on COVID response

FILE - Doses of the Moderna COVID-19 vaccine wait to be administered during a vaccination clinic in Odessa, Texas, on Tuesday, Aug. 24, 2021. On Thursday, June 23, 2022, an expert panel is recommending Moderna's COVID-19 shots for kids ages 6 to 17, marking another step toward bringing a second brand of vaccine for kids in that age group. (Eli Hartman/Odessa American via AP, File)

CDC experts endorse Moderna COVID-19 shots for kids ages 6 to 17

Pharmacist Kaitlin Harring, left, administers a Moderna COVID-19 vaccination to three year-old Fletcher Pack, while he sits on the lap of his mother, McKenzie Pack, at Walgreens pharmacy Monday, June 20, 2022, in Lexington, S.C. Today marked the first day COVID-19 vaccinations were made available to children under 5 in the United States. (AP Photo/Sean Rayford)

Shots for tots: COVID-19 vaccinations for little kids begin in U.S.

Q&A: What parents should know about COVID-19 shots for the youngest children

CDC recommends COVID-19 vaccines for children as young as 6 months

FDA authorizes 1st COVID-19 shots for infants, preschoolers

Pfizer says its COVID pill doesn’t work for healthier patients

Covid-19 Vaccines

LOS ANGELES, CA - JUNE 26: People attend Sunday Mass at the Cathedral of Our Lady of the Angels on the Sunday after the Supreme Court's decision to overturn Roe vs. Wade on Sunday, June 26, 2022 in Los Angeles, CA. (Jason Armond / Los Angeles Times)

‘We’re really worried.’ Coronavirus cases jump at L.A. County workplaces, sparking new safety push

An upswing in coronavirus infections has spawned a rise in worksite case clusters in Los Angeles County.

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