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LAURAN NEERGAARD

A screen showing the photos of Mary E Brunkow, Fred Ramsdell and Shimon Sakaguchi who were awarded the Nobel Prize in Medicine or Physiology, at the Nobel Assembly of the Karolinska Institutet, in Stockholm, Sweden, on October 6, 2025. (Claudio Bresciani/TT News Agency via AP)
October 6, 2025, 3:55 pm
Nobel Prize in medicine awarded to 3 scientists for work on immune system
Mary E. Brunkow, Fred Ramsdell of the US and Shimon Sakaguchi of Japan worked to identify the body’s ‘security guard’ cells, opening door to new treatments for autoimmune disorders
By KOSTYA MANENKOV, STEFANIE DAZIO and LAURAN NEERGAARD
Cleaning workers disinfect the Western Wall due to the COVID-19 virus in the Old City of Jerusalem, March 31, 2020. (Yonatan Sindel/Flash90)
January 2, 2025, 7:57 pm
5 years later: Things we know and still don’t know about COVID-19
Half a decade after a viral outbreak in Wuhan, China, forever changed the world, a look at the global pandemic and its ongoing effects
By LAURAN NEERGAARD, laura ungar and Mike Stobbe
FILE - In this Aug. 14, 2018 file photo, a doctor looks at PET brain scans in Phoenix (AP Photo/Matt York, File)
November 30, 2022, 12:08 pm
In first, new Alzheimer’s drug modestly slows progress of disease, researchers say
US, Japanese drugmakers announce results of full study, but remains unclear how much of a difference it may make to lives of those affected by the condition
By LAURAN NEERGAARD
Booster shots of the Pfizer COVID-19 vaccine are displayed during a vaccine clinic in Townshend, Vt., on Tuesday, Sept. 20, 2022. Kristopher Radder/The Brattleboro Reformer via AP)
November 4, 2022, 1:22 pm
Pfizer says study shows updated COVID shots gives major protection boost
Shot tweaked to target Omicron strain gives those 55 and older a four-fold boost over those who got regular shot and 13 times more antibodies than those with no booster
By LAURAN NEERGAARD
A resident of Jackson, Mississippi, receives a Pfizer booster shot from a nurse at a vaccination site February 8, 2022. (AP Photo/Rogelio V. Solis, File)
October 12, 2022, 9:52 pm
US approves updated COVID boosters for kids as young as 5
Combo shots modified to better protect against Omicron strains while still targeting earlier versions of the virus
By LAURAN NEERGAARD
This August 2022 photo provided by Pfizer shows vials of the company's updated COVID-19 vaccine during production in Kalamazoo, Michigan. (Pfizer via AP)
August 31, 2022, 8:42 pm
US FDA authorizes updated COVID boosters tailored to new subvariants
Following CDC approval, new ‘bivalent’ shots — which are half the original vaccine and half an Omicron-targeted version — expected to roll out across America
By LAURAN NEERGAARD
A syringe is prepared with the Pfizer COVID-19 vaccine at a vaccination clinic at the Keystone First Wellness Center in Chester, Pennsylvania, December 15, 2021. (AP Photo/Matt Rourke, File)
July 30, 2022, 9:17 pm
Sealing deals with vaccine makers, US plans Omicron booster rollout in the fall
FDA says tweaked Pfizer and Moderna shots to be available as early as September, but urges fourth dose of existing vaccine for eligible adults
By MATTHEW PERRONE and LAURAN NEERGAARD
Novavax coronavirus vaccine trial volunteer Franklyn Howe is given an injection at St George's University hospital in London, Oct. 7, 2020. (AP Photo/Alastair Grant)
July 14, 2022, 5:12 pm
US gets new, more conventional COVID vaccine as Novavax is cleared for adults
Maryland company makes traditional protein-based vaccination, unlike the dominant mRNA shots, as many Americans remain reluctant to get inoculated
By LAURAN NEERGAARD
A syringe is prepared with the Pfizer COVID-19 vaccine at a vaccination clinic at the Keystone First Wellness Center in Chester, Pennsylvania, December 15, 2021. (AP Photo/Matt Rourke, File)
June 25, 2022, 7:24 pm
Pfizer says tweaked COVID vaccine boosts Omicron protection
Pharma firm announces it has ‘two very strong’ candidates against the coronavirus variant, as US regulators set to weigh whether to offer updated boosters
By LAURAN NEERGAARD
Illustrative: A vial of the Moderna COVID-19 vaccine is displayed on a counter at a pharmacy in Portland, Oregon, December 27, 2021. (AP Photo/Jenny Kane)
June 8, 2022, 11:59 pm
Moderna says updated COVID booster protects against omicron
Vaccine reportedly triggers increased resistance across prior variants, although it’s unclear for how long; study performed on 437 people and not yet scientifically reviewed
By LAURAN NEERGAARD
RN Rosemary Lantigua inoculates Ryann Onofrio Franceschini, 11, with the first dose of the Pfizer-BioNTech COVID-19 vaccine for children five to 12 years at The Children's Hospital at Montefiore, November 3, 2021, in the Bronx borough of New York. (AP Photo/Mary Altaffer)
May 17, 2022, 6:45 pm
FDA clears COVID booster shot for healthy elementary school-age kids
CDC estimates 3 out of every 4 US children of all ages have been infected with coronavirus since the pandemic’s start
By LAURAN NEERGAARD
Illustrative: A vial of the Moderna COVID-19 vaccine is displayed on a counter at a pharmacy in Portland, Oregon, December 27, 2021. (AP Photo/Jenny Kane)
April 19, 2022, 2:41 pm
Moderna seeking to update COVID vaccine against Omicron by the fall
VP at US pharma firm says data showing shot it developed to help counter Beta variant ‘really give us hope’ that boosters can be adjusted for other coronavirus strains
By LAURAN NEERGAARD
A person is injected with her second dose of the Pfizer COVID-19 vaccine at a Dallas County Health and Human Services vaccination site in Dallas, Texas, on August 26, 2021. (AP Photo/LM Otero, File)
February 11, 2022, 10:26 pm
US regulators delay approval process for Pfizer’s COVID vaccine for kids under 5
FDA says more data needed on how well 3rd doses work in this age group, creating uncertainty over when the shots will be okayed for young children
By LAURAN NEERGAARD and MATTHEW PERRONE
Health care staff receive a 4th dose of the Moderna COVID-19 vaccine, at the Sheba Medical Center, on January 5, 2022. (Avshalom Sassoni/Flash90)
February 6, 2022, 12:41 am
A different COVID-19 vaccine debate: Do we need new ones?
‘We need collectively to be rethinking what is the goal of vaccination,’ doctor says, as shots prove effective at saving lives but not in preventing spread of new variants
By LAURAN NEERGAARD
A colorized electron microscope image shows a single human immunodeficiency virus (HIV) as it buds from a human immune cell, which the virus had infected. (NIAID via AP)
February 4, 2022, 7:48 am
Scientists find new, more virulent strain of HIV, but say no cause for alarm
Mutated variant circulated in the Netherlands for decades without being detected, but researchers say existing medicines are effective and it’s on the decline
By LAURAN NEERGAARD
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