24-Hour Crisis Hotline: (877)SAFEGBC or (877)723-3422 Mental Health & Substance Abuse Issues

6502 Nursery Drive, Suite 100
Victoria, TX 77904
Fax: (361)578-5500
Regular Hours: M-Fri 8am - 5pm
Every 3rd Thurs of the Month - Extended Hours Until 7 pm

Medical Disorders
Basic InformationLookupsLatest News
When Is It Time for a Knee Replacement?AHA News: Death Rates From Tears In This Major Heart Artery Are Rising, Especially Among Women, Black AdultsOmicron COVID Causing Severe Croup in Young Children'Zapping' Air Passages May Bring Relief for Severe AsthmaModerna Asks FDA to Approve Second Booster for All AdultsNew Tick-Borne Virus Is Spreading Across U.S.Memory Issues Plague Long COVID PatientsCOVID Vaccine Won't Cause Rare Neuro Events, But COVID Infection CouldTriglycerides a Stroke Danger, Even With Statin TreatmentIt Can Take Weeks for Some Patients With Severe COVID to Recover ConsciousnessOmicron Wave Had 5 Times as Many Small Kids Hospitalized Compared to DeltaBreathing Dirty Air Could Raise Your Odds for Rheumatoid ArthritisPalliative Care Crucial After Severe Stroke, But Many Patients Miss OutMammograms Can Also Highlight Heart Risks: StudyPfizer Asks FDA to Approve Second Booster for SeniorsEven a Little Light in Your Bedroom Could Harm HealthMental Issues Can Linger More Than a Year After Severe COVIDRise in U.K. COVID Cases Closely Watched by U.S. Health OfficialsLong COVID May Bring Long-Term Lung DamageNew Malaria Treatment Gets First Approval for Use in ChildrenWarming World Means More Cases of Dangerous Low-Salt ConditionAbout 1 in 6 U.S. Couples Disagrees on COVID VaccinationCOVID Meds Appear to Work Against BA.2 Omicron Variant‘Deltacron’ Variant Rare and Not a Major ConcernCould Depression Make Dry Eye Worse?When Will Americans With Diabetes Get Relief From High Insulin Prices?COVID's Global Death Toll May Be 3 Times Official NumbersDrug Could Be Non-Antibiotic Alternative to Treat UTIsFlu Vaccine No Match for Circulating Variants This SeasonLymphedema in Legs Strikes 1 in 3 Female Cancer SurvivorsScience Brings Shortcut to Spotting 50 Rare Genetic DiseasesU.S. Airplane, Train and Transit Mask Mandates Extended to April 18Man Who Received First Pig Heart Transplant Has DiedPfizer Begins Trial of COVID Drug Paxlovid in Kids 6 to 17Could a Stool Test Help Spot Pancreatic Cancer?Upcoming Surgery Worry You? Poll Says You're Not AloneHalf of Americans Live With Legacy of Childhood Lead PoisoningIn Reversal, WHO Now Supports COVID BoostersLooking to Neanderthals to Explain Today's Lower Back PainWhat's More Accurate, Blood Pressure Readings at Home or Doctor's Office?Begin Now to Protect Your Heart as Clocks 'Spring Forward'Brain Changes May Fuel 'Long COVID' Anxiety, ConfusionAHA News: Break Up Binge-Watching by Taking a StandHow COVID-19 Can Change the BrainHeart Defects Could Raise Odds for Severe COVID-196 Healthy Steps to Preventing Colon CancerAHA News: These Three Risk Factors May Have the Biggest Impact on Dementia CasesU.S. Surgeon General Investigates COVID-19 MisinformationLong or Irregular Periods May Put a Woman's Liver at RiskCould Your Blood Type Make COVID Worse?
Questions and AnswersLinks
Related Topics


Moderna Begins Testing Booster Shot Aimed at Omicron

HealthDay News
by Robin Foster
Updated: Jan 27th 2022

new article illustration

THURSDAY, Jan. 27, 2022 (HealthDay News) -- Moderna Inc. announced Wednesday that it has launched a trial that will study the power of a redesigned booster shot -- one that hones in on the highly contagious Omicron variant.

The news comes just one day after Pfizer announced that it has started testing its own Omicron-specific shot.

In announcing its trial, Moderna also explained why the newly formulated shot is needed: A small lab study published Wednesday in the New England Journal of Medicine suggests the protection that Moderna's authorized booster shot provides against Omicron fades in six months' time.

After a single dose of the current booster, the level of Omicron-fighting antibodies rose 20 times higher than their peak before the shot, the company said. But those antibody levels had fallen more than sixfold six months later, though they were still detected in all of the booster recipients in the study.

"We are reassured by the antibody persistence against Omicron at six months after the currently authorized 50 µg booster of mRNA-1273. Nonetheless, given the long-term threat demonstrated by Omicron's immune escape, we are advancing our Omicron-specific variant vaccine booster candidate," Moderna CEO Stéphane Bancel said in a company statement.

Although Omicron can evade the antibodies elicited by authorized vaccines, making breakthrough infections more common, the vaccines still provide strong protection against hospitalization and death, several studies have already shown.

Moderna’s new study will focus on a single Omicron-specific booster dose in about 600 adults, broken into two groups: Those who have received two doses of Moderna’s current vaccine, and those have received two doses plus a booster.

The company did not say when results could be expected.

Pfizer, which plans to enroll as many as 1,420 people in its study, said it expects to have results in the first half of this year.

Both Omicron-specific booster shots are being developed as the Omicron variant establishes its dominance in this country: The latest data from the U.S. Centers of Disease Control and Prevention show that 99.9% of U.S. COVID cases are now driven by the highly transmissible variant.

More information

Visit the U.S. Food and Drug Administration for more on COVID vaccines.

SOURCE: Associated Press, The New York Times