www.wsj.com Open in urlscan Pro
2600:9000:2315:d400:3:4b0:de80:93a1  Public Scan

Submitted URL: http://go.pardot.com/e/710433/s-11652186194-mod-hp-lead-pos6/f6565/514037293?h=OG6BSLgATNi9bn_zK_tGwcYPthLuGbxZ3oX9TU...
Effective URL: https://www.wsj.com/articles/some-covid-19-patients-relapse-after-taking-paxlovid-puzzling-doctors-11652186194?mod=h...
Submission: On May 11 via api from US — Scanned from DE

Form analysis 1 forms found in the DOM

#

<form action="#" class="style--search-form-hI0pb2JfplZrewKUN--51 " role="search"><input id="searchInput" class="style--wsj-search-input-GNMy8Q5kg9IYwJKXYfIMm " placeholder="Enter News, Quotes, Companies or Videos" type="search"
    aria-label="Search the Wall Street Journal" tabindex="-1"><button class="style--search-submit-2EFgMYmHzRT8YBR7BYrV6G " aria-label="Submit Button" value="Search" type="submit" tabindex="-1">Search <svg width="24" height="24" viewBox="0 0 24 24">
      <defs>
        <path id="search-medium_svg__a" d="M10.5 2a7.5 7.5 0 015.645 12.438l5.365 5.365-.707.707-5.365-5.365A7.5 7.5 0 1110.5 2zm0 1a6.5 6.5 0 100 13 6.5 6.5 0 000-13z"></path>
      </defs>
      <use fill="currentColor" fill-rule="evenodd" xlink:href="#search-medium_svg__a"></use>
    </svg></button></form>

Text Content

Skip to Main ContentSkip to SearchSkip to...
Select
 * Listen to Article
 * What To Read Next
 * Opinion Editor's Picks
 * Sponsored Offers
 * Most Popular Articles
 * Most Popular Opinion
 * Opinion Editor's Picks
 * Recommended Videos

Dow Jones, a News Corp companyAbout WSJ
 * News Corp is a global, diversified media and information services company
   focused on creating and distributing authoritative and engaging content and
   other products and services.
 * Dow Jones
   * Barron's
   * BigCharts
   * Dow Jones Businesses
   * Dow Jones Newswires
   * Factiva
   * Financial News
   * Mansion Global
   * MarketWatch
   * Newsmart
   * NewsPlus
   * Risk & Compliance
   * WSJ Live
   * WSJ Pro
   * WSJ Video
   * WSJ.com
 * News Corp
   * Avail
   * Business Spectator
   * HarperCollins Publishers
   * Housing
   * Makaan
   * New York Post
   * REA
   * realtor.com
   * Storyful
   * The Australian
   * The Sun
   * The Times
 * 


DJIA Futures32373 points with a0.89%▲
S&P 500 F4042.25 points with a1.14%▲
Stoxx 600425.86 points with a1.33%▲
U.S. 10 Yr4/32 Yieldwith a2.945%▲
Crude Oil103.50 points with a3.75%▲
Euro1.0549 points with a0.16%▲
The Wall Street Journal
SubscribeSign In
Special Offer
The Wall Street Journal
€2 per Month for 1 Year
Get the insights and analysis trusted by key decision-makers around the world.
Become a WSJ Member Today
View Membership Options

English Edition
 * English
 * 中文 (Chinese)
 * 日本語 (Japanese)

Print Edition
Video
Podcasts
Latest Headlines
SubscribeSign In

 * Home
 * World
   
   REGIONS
   
    * Africa
    * Asia
    * Canada
    * China
    * Europe
    * Latin America
    * Middle East
   
   SECTIONS
   
    * Economy
   
   MORE
   
    * World Video

 * U.S.
   
   SECTIONS
   
    * Economy
    * Law
    * Politics
   
   MORE
   
    * WSJ Noted.
    * U.S. Video
    * What's News Podcast

 * Politics
   
   SECTIONS
   
    * Capital Journal
   
   MORE
   
    * Politics Video
   
   COLUMNS
   
    * Gerald Seib
    * Washington Wire

 * Economy
   
   WSJ PRO
   
    * Bankruptcy
    * Central Banking
    * Private Equity
    * Strategic Intelligence
    * Venture Capital
   
   MORE
   
    * Economic Forecasting Survey
    * Economy Video
   
   SECTIONS
   
    * Capital Account

 * Business
   
   SECTIONS
   
    * Management
    * The Future of Everything
    * Obituaries
    * Tech/WSJ.D
   
   INDUSTRIES
   
    * Aerospace & Defense
    * Autos & Transportation
    * Commercial Real Estate
    * Consumer Products
    * Energy
    * Entrepreneurship
    * Financial Services
    * Food & Services
    * Health Care
   
    * Hospitality
    * Law
    * Manufacturing
    * Media & Marketing
    * Natural Resources
    * Retail
   
   C-SUITE
   
    * CFO Journal
    * CIO Journal
    * CMO Today
    * Logistics Report
    * Risk & Compliance
    * The Workplace Report
   
   COLUMNS
   
    * Heard on the Street
   
   WSJ PRO
   
    * Bankruptcy
    * Central Banking
    * Cybersecurity
    * Private Equity
    * Sustainable Business
    * Venture Capital
   
   MORE
   
    * Business Video
    * Journal Report
    * Business Podcast
    * Space & Science

 * Tech
   
   SECTIONS
   
    * CIO Journal
    * The Future of Everything
    * Personal Tech
   
   COLUMNS
   
    * Christopher Mims
    * Joanna Stern
    * Julie Jargon
    * Nicole Nguyen
   
   MORE
   
    * Tech Video
    * Tech Podcast

 * Markets
   
   SECTIONS
   
    * Bonds
    * Commercial Real Estate
    * Commodities & Futures
    * Stocks
    * Personal Finance
    * WSJ Money
    * Streetwise
    * Intelligent Investor
   
   COLUMNS
   
    * Heard on the Street
    * Greg Ip
    * Jason Zweig
    * Laura Saunders
    * James Mackintosh
   
   MARKET DATA
   
    * Market Data Home
    * U.S. Stocks
    * Currencies
    * Companies
    * Commodities
    * Bonds & Rates
    * Mutual Funds & ETFs
   
   MORE
   
    * CFO Journal
    * Markets Video
    * Your Money Briefing Podcast
    * Secrets of Wealthy Women Podcast
   
   Search Quotes and Companies
 * Opinion
   
   COLUMNISTS
   
    * Gerard Baker
    * Sadanand Dhume
    * James Freeman
    * William A. Galston
    * Daniel Henninger
    * Holman W. Jenkins
    * Andy Kessler
    * William McGurn
    * Walter Russell Mead
    * Peggy Noonan
    * Mary Anastasia O'Grady
    * Jason Riley
    * Joseph Sternberg
    * Kimberley A. Strassel
   
   MORE
   
    * Editorials
    * Commentary
    * Future View
    * Letters to the Editor
    * The Weekend Interview
    * Potomac Watch Podcast
    * Foreign Edition Podcast
    * Free Expression Podcast
    * Opinion Video
    * Notable & Quotable

 * Books & Arts
   
   REVIEWS
   
    * Film
    * Television
    * Theater
    * Masterpiece Series
    * Music
    * Dance
    * Opera
    * Exhibition
    * Cultural Commentary
   
   SECTIONS
   
    * Arts
    * Books
   
   MORE
   
    * WSJ Puzzles
    * Life Video
    * Arts Video

 * Real Estate
   
   SECTIONS
   
    * Commercial Real Estate
   
   MORE
   
    * Real Estate Video

 * Life & Work
   
   SECTIONS
   
    * Cars
    * Careers
    * Entertainment
    * Food & Drink
    * Home & Design
    * Ideas
    * Personal Finance
    * Recipes
    * Style & Fashion
    * Travel
    * Wellness
   
   COLUMNS
   
    * Your Health
    * Work & Life
    * The Middle Seat
    * Bonds
    * At Work
    * Turning Points
    * Off Brand
    * On Trend
    * On Wine
    * On The Clock
   
   MORE
   
    * WSJ Puzzles
    * Space & Science

 * WSJ. Magazine
   
   SECTIONS
   
    * Fashion
    * Art & Design
    * Travel
    * Food
    * Culture

 * Sports
   
   SECTIONS
   
    * Beijing 2022 Olympics
    * MLB
    * NBA
    * NFL
    * Golf
    * Tennis
    * Soccer
   
   COLUMNS
   
    * Jason Gay

Search
 * Home
 * World
   
   REGIONS
   
    * Africa
    * Asia
    * Canada
    * China
    * Europe
    * Latin America
    * Middle East
   
   SECTIONS
   
    * Economy
   
   MORE
   
    * World Video

 * U.S.
   
   SECTIONS
   
    * Economy
    * Law
    * Politics
   
   MORE
   
    * WSJ Noted.
    * U.S. Video
    * What's News Podcast

 * Politics
   
   SECTIONS
   
    * Capital Journal
   
   MORE
   
    * Politics Video
   
   COLUMNS
   
    * Gerald Seib
    * Washington Wire

 * Economy
   
   WSJ PRO
   
    * Bankruptcy
    * Central Banking
    * Private Equity
    * Strategic Intelligence
    * Venture Capital
   
   MORE
   
    * Economic Forecasting Survey
    * Economy Video
   
   SECTIONS
   
    * Capital Account

 * Business
   
   SECTIONS
   
    * Management
    * The Future of Everything
    * Obituaries
    * Tech/WSJ.D
   
   INDUSTRIES
   
    * Aerospace & Defense
    * Autos & Transportation
    * Commercial Real Estate
    * Consumer Products
    * Energy
    * Entrepreneurship
    * Financial Services
    * Food & Services
    * Health Care
   
    * Hospitality
    * Law
    * Manufacturing
    * Media & Marketing
    * Natural Resources
    * Retail
   
   C-SUITE
   
    * CFO Journal
    * CIO Journal
    * CMO Today
    * Logistics Report
    * Risk & Compliance
    * The Workplace Report
   
   COLUMNS
   
    * Heard on the Street
   
   WSJ PRO
   
    * Bankruptcy
    * Central Banking
    * Cybersecurity
    * Private Equity
    * Sustainable Business
    * Venture Capital
   
   MORE
   
    * Business Video
    * Journal Report
    * Business Podcast
    * Space & Science

 * Tech
   
   SECTIONS
   
    * CIO Journal
    * The Future of Everything
    * Personal Tech
   
   COLUMNS
   
    * Christopher Mims
    * Joanna Stern
    * Julie Jargon
    * Nicole Nguyen
   
   MORE
   
    * Tech Video
    * Tech Podcast

 * Markets
   
   SECTIONS
   
    * Bonds
    * Commercial Real Estate
    * Commodities & Futures
    * Stocks
    * Personal Finance
    * WSJ Money
    * Streetwise
    * Intelligent Investor
   
   COLUMNS
   
    * Heard on the Street
    * Greg Ip
    * Jason Zweig
    * Laura Saunders
    * James Mackintosh
   
   MARKET DATA
   
    * Market Data Home
    * U.S. Stocks
    * Currencies
    * Companies
    * Commodities
    * Bonds & Rates
    * Mutual Funds & ETFs
   
   MORE
   
    * CFO Journal
    * Markets Video
    * Your Money Briefing Podcast
    * Secrets of Wealthy Women Podcast
   
   Search Quotes and Companies
 * Opinion
   
   COLUMNISTS
   
    * Gerard Baker
    * Sadanand Dhume
    * James Freeman
    * William A. Galston
    * Daniel Henninger
    * Holman W. Jenkins
    * Andy Kessler
    * William McGurn
    * Walter Russell Mead
    * Peggy Noonan
    * Mary Anastasia O'Grady
    * Jason Riley
    * Joseph Sternberg
    * Kimberley A. Strassel
   
   MORE
   
    * Editorials
    * Commentary
    * Future View
    * Letters to the Editor
    * The Weekend Interview
    * Potomac Watch Podcast
    * Foreign Edition Podcast
    * Free Expression Podcast
    * Opinion Video
    * Notable & Quotable

 * Books & Arts
   
   REVIEWS
   
    * Film
    * Television
    * Theater
    * Masterpiece Series
    * Music
    * Dance
    * Opera
    * Exhibition
    * Cultural Commentary
   
   SECTIONS
   
    * Arts
    * Books
   
   MORE
   
    * WSJ Puzzles
    * Life Video
    * Arts Video

 * Real Estate
   
   SECTIONS
   
    * Commercial Real Estate
   
   MORE
   
    * Real Estate Video

 * Life & Work
   
   SECTIONS
   
    * Cars
    * Careers
    * Entertainment
    * Food & Drink
    * Home & Design
    * Ideas
    * Personal Finance
    * Recipes
    * Style & Fashion
    * Travel
    * Wellness
   
   COLUMNS
   
    * Your Health
    * Work & Life
    * The Middle Seat
    * Bonds
    * At Work
    * Turning Points
    * Off Brand
    * On Trend
    * On Wine
    * On The Clock
   
   MORE
   
    * WSJ Puzzles
    * Space & Science

 * WSJ. Magazine
   
   SECTIONS
   
    * Fashion
    * Art & Design
    * Travel
    * Food
    * Culture

 * Sports
   
   SECTIONS
   
    * Beijing 2022 Olympics
    * MLB
    * NBA
    * NFL
    * Golf
    * Tennis
    * Soccer
   
   COLUMNS
   
    * Jason Gay

Search
Search

COVID-19

Mask Q&AGetting Covid TwiceVaccinating ChildrenBA.2 VariantTreating CovidCovid
TrackerBooster Q&A




Share
 * Facebook
 * Twitter
 * LinkedIn
 * Copy Link

 * Health


SOME COVID-19 PATIENTS RELAPSE AFTER TAKING PAXLOVID, PUZZLING DOCTORS


THE REBOUND CASES HAVEN’T RESULTED IN SEVERE DISEASE SO FAR, BUT AUTHORITIES ARE
TRYING TO DETERMINE WHY THEY HAPPEN, HOW OFTEN AND HOW TO HANDLE

FDA Authorizes Merck’s Covid-19 Pill: Here’s How It Works
Skip Ad

in 15
You may also like

CloseCreated with sketchtool.
Up Next
CloseCreated with sketchtool.

Your browser does not support HTML5 video.


0:00

PlayCreated with sketchtool.
Paused
Sound OnCreated with sketchtool.

0:00 / 5:55


ShareCreated with sketchtool.Closed Captions InactiveCreated with sketchtool.
FDA Authorizes Merck’s Covid-19 Pill: Here’s How It WorksPlay video: FDA
Authorizes Merck’s Covid-19 Pill: Here’s How It Works

The FDA has cleared Merck’s new Covid-19 therapy molnupiravir, the latest
antiviral that adults can take at home to avoid severe disease. WSJ’s Daniela
Hernandez explains the science behind the new drug. (Originally published Dec.
23, 2021) Photo: Merck
By
Jared S. Hopkins
May 10, 2022 8:36 am ET

Print

Text

74



U.S. health authorities and researchers are investigating why some people who
appeared to recover from Covid-19 after taking Pfizer Inc.’s antiviral pill
developed symptoms again soon after.

Paxlovid is supposed to treat the newly infected, keeping them out of the
hospital. Within two weeks of appearing to get better, however, some users
experienced cold-like symptoms such as sore throat and cough, according to
physicians and published case reports.

Subscribe Sign In


CONTINUE READING YOUR ARTICLE WITH
A WSJ MEMBERSHIP


SPECIAL OFFER


€2 PER MONTH FOR 1 YEAR

View Membership Options


RESUME SUBSCRIPTION

We are delighted that you'd like to resume your subscription.

You will be charged $ + tax (if applicable) for The Wall Street Journal. You may
change your billing preferences at any time in the Customer Center or call
Customer Service. You will be notified in advance of any changes in rate or
terms. You may cancel your subscription at anytime by calling Customer Service.

Please click confirm to resume now.

Confirm



Sponsored Offers
 * Wayfair:
   Extra 15% off + free shipping at Wayfair
 * Target:
   Up to 60% off - Target Promo Code
 * Macy's:
   Macy's coupon - Sign up to get 25% off next order
 * Kohl's:
   Kohl's coupon - 30% off for Rewards members
 * Saks Fifth Avenue:
   $20 off sitewide + free shipping - Saks Fifth Avenue coupon
 * PrettyLittleThing:
   Sign up for emails and get 20% off PrettyLittleThing discount code + $1
   shipping


MOST POPULAR NEWS

 * ‘BUY THE DIP’ BELIEVERS ARE TESTED BY MARKET’S DOWNWARD SLIDE

 * MIAMI LOCALS ARE STEAMED OVER RELOCATING NEW YORKERS DRIVING UP APARTMENT
   RENTS

 * DOW FALLS FOR FOURTH STRAIGHT DAY; NASDAQ, S&P 500 RISE

 * ELON MUSK SAYS HE WOULD REVERSE TWITTER’S BAN ON DONALD TRUMP

 * BITCOIN PRICE FALLS 54% FROM ITS HIGH


MOST POPULAR OPINION

 * OPINION: A HIGH-SPEED ELECTRIC VEHICLE CRASH

 * OPINION: PRESIDENT COSTANZA TAKES ON INFLATION

 * OPINION: SCHUMER’S RADICAL ABORTION BILL

 * OPINION: XI JINPING SCRAMBLES AS CHINA’S ECONOMY STUMBLES

 * OPINION: CAN MICHAEL SHELLENBERGER BEAT GAVIN NEWSOM?




RECOMMENDED VIDEOS

 * SAMSUNG JOINS CHIP MAKERS RETURNING TO U.S. MANUFACTURING

 * WARHOL’S FAMED MARILYN MONROE PORTRAIT SELLS FOR RECORD-BREAKING $195 MILLION

 * WATCH: PSAKI AND JEAN-PIERRE SPEAK AFTER BIDEN NAMES NEW PRESS SECRETARY

 * WATCH: SPACEX CAPSULE MAKES MIDNIGHT SPLASHDOWN OFF COAST OF FLORIDA

 * BIDEN SEEKS TO HEIGHTEN CONTRAST WITH REPUBLICAN ECONOMIC AGENDA










 * The Wall Street Journal
 * 
   English Edition
    * English
    * 中文 (Chinese)
    * 日本語 (Japanese)

 * * Subscribe Now
   * Sign In
 * Back to Top «

WSJ Membership

 * WSJ+ Membership Benefits
 * Subscription Options
 * Why Subscribe?
 * Corporate Subscriptions
 * Professor Journal
 * Student Journal
 * WSJ High School Program
 * Public Library Program
 * WSJ Live

Customer Service

 * Customer Center
 * Contact Us

Tools & Features

 * Newsletters & Alerts
 * Guides
 * Topics
 * My News
 * RSS Feeds
 * Video Center
 * Watchlist
 * Podcasts
 * Visual Stories

Ads

 * Advertise
 * Commercial Real Estate Ads
 * Place a Classified Ad
 * Sell Your Business
 * Sell Your Home
 * Recruitment & Career Ads
 * Coupons
 * Digital Self Service

More

 * About Us
 * Commercial Partnerships
 * Content Partnerships
 * Corrections
 * Jobs at WSJ
 * News Archive
 * Register for Free
 * Reprints & Licensing
 * Buy Issues
 * WSJ Shop

 * Facebook
 * Twitter
 * Instagram
 * YouTube
 * Podcasts
 * Snapchat
 * Google Play
 * App Store

Dow Jones Products

 * Barron's
 * BigCharts
 * Dow Jones Newswires
 * Factiva
 * Financial News
 * Mansion Global
 * MarketWatch
 * Risk & Compliance
 * WSJ Pro
 * WSJ Video
 * WSJ Wine

 * Privacy Notice
 * Cookie Notice
 * Copyright Policy
 * Data Policy
 * Subscriber Agreement & Terms of Use
 * Your Ad Choices
 * Accessibility
 * Copyright ©2022 Dow Jones & Company, Inc. All Rights Reserved.