Booster Shots for Covid Leave Africa Hanging in Wind

Just 20 percent of people in low- and lower-middle-income countries have received a first Covid-19 vaccine dose — compared to 80 percent in high-and upper-middle income countries.

#africa, #african-union, #coronavirus-2019-ncov, #coronavirus-delta-variant, #covax, #disease-rates, #european-union, #immune-system, #international-monetary-fund, #international-trade-and-world-market, #london-school-of-hygiene-and-tropical-medicine, #royal-free-hospital-london-england, #shortages, #stockpiling, #third-world-and-developing-countries, #united-nations, #united-states, #vaccination-and-immunization, #world-health-organization

Study of Covid Booster Shot Benefits Fans Debate Over Extra Doses

Independent experts, including government scientists, were skeptical of the research from Israel, which included limited data over a short period.

#antibodies, #blood, #coronavirus-2019-ncov, #deaths-fatalities, #disease-rates, #drugs-pharmaceuticals, #elderly, #food-and-drug-administration, #immune-system, #new-england-journal-of-medicine, #pfizer-inc, #preventive-medicine, #united-states, #united-states-politics-and-government, #vaccination-and-immunization, #your-feed-science

Most People Don’t Need a Covid Vaccine Booster, New Review Says

The benefits of a third shot for most people are small and are far outweighed by the benefits of using those doses for initial vaccinations, the scientists say.

#coronavirus-2019-ncov, #coronavirus-delta-variant, #immune-system, #vaccination-and-immunization

Vaccine Effectiveness Against Infection May Wane, C.D.C. Studies Find

Federal health officials said the new data justified a campaign of booster shots. But some scientists disagreed, saying not every American needs another dose.

#centers-for-disease-control-and-prevention, #coronavirus-2019-ncov, #coronavirus-delta-variant, #disease-rates, #immune-system, #moderna-inc, #new-york-state, #nursing-homes, #pfizer-inc, #united-states, #vaccination-and-immunization, #your-feed-science

Breakthrough Infections and the Delta Variant: What to Know

Scientific understanding of the coronavirus variant is changing quickly. Here’s a recap of the most important findings.

#antibodies, #centers-for-disease-control-and-prevention, #coronavirus-2019-ncov, #deaths-fatalities, #disease-rates, #immune-system, #united-states, #vaccination-and-immunization, #your-feed-science

How Often Do the Vaccinated Spread Covid-19?

The C.D.C.’s new masking advice was based in part on data showing that the virus can thrive in the airways of vaccinated people. The findings are expected on Friday.

#centers-for-disease-control-and-prevention, #coronavirus-2019-ncov, #coronavirus-risks-and-safety-concerns, #disease-rates, #immune-system, #throat, #vaccination-and-immunization, #walensky-rochelle, #your-feed-science

C.D.C. Says Some Vaccinated Americans Should Wear Masks Again

In communities with growing caseloads, vaccinated and unvaccinated people should return to wearing masks indoors in public areas, health officials said.

#centers-for-disease-control-and-prevention, #coronavirus-2019-ncov, #deaths-fatalities, #disease-rates, #education-k-12, #immune-system, #infections, #united-states-politics-and-government, #vaccination-and-immunization, #walensky-rochelle, #your-feed-science

Why Everyone Has the Worst Summer Cold Ever

As pandemic restrictions begin to relax, common viruses that cause drippy noses, stuffy heads and other cold symptoms have roared back to taunt your immune system.

#anxiety-and-stress, #colds, #content-type-service, #coronavirus-2019-ncov, #coronavirus-risks-and-safety-concerns, #coughs, #hygiene-and-cleanliness, #immune-system, #influenza, #quarantine-life-and-culture, #respiratory-diseases, #summer-season, #viruses

J.&J. Vaccine May Be Less Effective Against Delta, Study Suggests

Many who received the shot may need to consider boosters, the authors said. But federal health officials do not recommend second doses.

#astrazeneca-plc, #blood-clots, #coronavirus-2019-ncov, #disease-rates, #drugs-pharmaceuticals, #food-and-drug-administration, #immune-system, #johnsonjohnson, #moderna-inc, #pfizer-inc, #research, #vaccination-and-immunization, #your-feed-science

Covid-19 Delta Variant Widens Gulf Between Vaccinated and Unvaccinated

Data from overseas, particularly Britain, suggest the spread of the virus will set vaccinated and unvaccinated communities on very different paths.

#astrazeneca-plc, #australia, #coronavirus-2019-ncov, #deaths-fatalities, #disease-rates, #england, #europe, #great-britain, #immune-system, #india, #infections, #israel, #nature-journal, #oregon, #pfizer-inc, #scotland, #seasons-and-months, #south-africa, #south-america, #southern-states-us, #states-us, #united-states, #vaccination-and-immunization, #western-states-us, #your-feed-science, #youth

Citing the Delta Variant, Pfizer Will Pursue Booster Shots and a New Vaccine

Scientists were critical of the announcement, pointing to evidence that the current two-dose regimen is powerfully effective against the coronavirus.

#astrazeneca-plc, #biontech-se, #clinical-trials, #coronavirus-2019-ncov, #disease-rates, #drugs-pharmaceuticals, #immune-system, #pfizer-inc, #stockpiling, #vaccination-and-immunization, #your-feed-science

Should People With Immune Problems Get Third Vaccine Doses?

France is handing out third shots of the two-dose vaccines to cancer patients and others with immune system impairments. In the United States, patients like these are on their own.

#antibodies, #clinical-trials, #coronavirus-2019-ncov, #disease-rates, #drugs-pharmaceuticals, #france, #immune-system, #influenza, #moderna-inc, #research, #transplants, #united-states, #vaccination-and-immunization, #your-feed-science

Johnson & Johnson Vaccine Protects Against Delta Variant, Company Reports

The vaccine also produced long-lasting immune responses, researchers said. Booster shots seem unnecessary, at least for now.

#clinical-trials, #coronavirus-2019-ncov, #immune-system, #johnsonjohnson, #moderna-inc, #pfizer-inc, #united-states, #vaccination-and-immunization, #your-feed-science

Three Studies, One Result: Vaccines Point the Way Out of the Pandemic

New scientific research underscores the effectiveness of vaccines and their versatility in the fight against the coronavirus.

#antibodies, #astrazeneca-plc, #biontech-se, #clinical-trials, #coronavirus-2019-ncov, #disease-rates, #immune-system, #johnsonjohnson, #moderna-inc, #nature-journal, #pfizer-inc, #research, #united-states, #vaccination-and-immunization, #your-feed-science

Pfizer and Moderna Vaccines Likely to Produce Lasting Immunity, Study Finds

Immune cells are still organizing to fight the coronavirus months after inoculation, scientists reported.

#antibodies, #biontech-se, #coronavirus-2019-ncov, #immune-system, #lymph-nodes-and-lymphatic-system, #moderna-inc, #nature-journal, #pfizer-inc, #vaccination-and-immunization, #your-feed-science

Wondering if the Covid Vaccine Worked? Get the Right Test, at the Right Time

Scientists generally recommend against antibody testing after vaccination. But for some people, it makes sense.

#antibodies, #clinical-trials, #coronavirus-2019-ncov, #immune-system, #lat-david-b, #organ-donation, #tests-medical, #vaccination-and-immunization, #your-feed-science

Moderna, AstraZeneca … or Both? A Mixed Covid Vaccine Approach.

Scientists are studying mix-and-matching vaccines for Covid-19 and other diseases.

#coronavirus-2019-ncov, #immune-system, #science-and-technology, #vaccination-and-immunization

How the ‘Alpha’ Coronavirus Variant Became So Powerful

A new study suggests how the variant first identified in Britain hides from the human immune system. Its stealth may be part of its success.

#coronavirus-2019-ncov, #genetics-and-heredity, #immune-system, #interferon-protein, #research, #vaccination-and-immunization

We’ll Probably Need Booster Shots for Covid-19. But When? And Which Ones?

Scientists are asking a lot of questions about Covid-19 booster shots, but they don’t yet have many answers. Here’s what they know so far.

#clinical-trials, #coronavirus-2019-ncov, #disease-rates, #immune-system, #research, #vaccination-and-immunization, #your-feed-healthcare, #your-feed-science

Immunity to the Coronavirus May Persist for Years, Scientists Find

Important immune cells survive in the bone marrow of people who were infected with the virus or were inoculated against it, new research suggests.

#antibodies, #bone-marrow, #coronavirus-2019-ncov, #immune-system, #moderna-inc, #nature-journal, #vaccination-and-immunization, #your-feed-science

Covid Vaccines Protect Pregnant Women, Study Confirms

The shots may also have benefits for infants and do not seem to damage the placenta, according to the latest research.

#antibodies, #breastfeeding, #coronavirus-2019-ncov, #immune-system, #journal-of-the-american-medical-assn, #moderna-inc, #obstetricsgynecology-journal, #pfizer-inc, #pregnancy-and-childbirth, #vaccination-and-immunization, #your-feed-health, #your-feed-healthcare

Why Exercise Can Be So Draining for People With Rheumatoid Arthritis

Even a gentle session of leg lifts set off an exaggerated nervous system reaction in older women with rheumatoid arthritis.

#autoimmune-diseases, #blood-pressure, #coronavirus-2019-ncov, #heart, #immune-system, #journal-of-physiology-the, #muscles, #nerves-and-nervous-system, #rheumatoid-arthritis

Do I Have to Get the Covid Vaccine in My Arm?

Most people will roll up their sleeves for the injection, but some may want to consider an alternate body part.

#breast-cancer, #content-type-service, #coronavirus-2019-ncov, #immune-system, #lymph-nodes-and-lymphatic-system, #lymphedema, #mammography, #vaccination-and-immunization

Can You Have Alcohol After the Covid Vaccine?

Moderate drinking is unlikely to impair the immune response to the Covid vaccine, but heavy drinking might.

#alcoholic-beverages, #content-type-service, #coronavirus-2019-ncov, #immune-system, #vaccination-and-immunization

After Covid, Your Health May Depend on Living With Germs

The health of our bodies and microbiomes may depend on society’s return to lifestyles that expose us to bacteria, despite the risks.

#chronic-condition-health, #coronavirus-risks-and-safety-concerns, #hygiene-and-cleanliness, #immune-system, #microbiology

Vaccines Are Effective Against the New York Variant, Studies Find

The research adds to a growing number of findings suggesting the Pfizer and Moderna shots are protective against the variants identified so far.

#antibodies, #astrazeneca-plc, #coronavirus-2019-ncov, #great-britain, #immune-system, #moderna-inc, #new-york-city, #pfizer-inc, #regeneron-pharmaceuticals-inc, #south-africa, #vaccination-and-immunization, #your-feed-science

No, We Don’t Know if Coronavirus Vaccines Affect Periods

We do know that researchers do not study menstruation enough.

#clinical-trials, #coronavirus-2019-ncov, #hormones, #immune-system, #menstruation, #pregnancy-and-childbirth, #vaccination-and-immunization

Vaccines Won’t Protect Millions of Patients With Weakened Immune Systems

Many cannot produce enough infection-fighting cells to fend off the coronavirus. But researchers are testing one therapy that may help: monoclonal antibodies.

#antibodies, #autoimmune-diseases, #coronavirus-2019-ncov, #drugs-pharmaceuticals, #immune-system, #leukemialymphoma-society, #regeneron-pharmaceuticals-inc, #rituxan, #vaccination-and-immunization, #your-feed-science

Vaccines Won’t Protect Millions of Patients With Crippled Immune Systems

Many cannot produce enough infection-fighting cells to fend off the coronavirus. But researchers are testing one therapy that may help: monoclonal antibodies.

#antibodies, #autoimmune-diseases, #coronavirus-2019-ncov, #drugs-pharmaceuticals, #immune-system, #leukemialymphoma-society, #regeneron-pharmaceuticals-inc, #rituxan, #vaccination-and-immunization, #your-feed-science

Vaccinated Mothers Are Trying to Give Babies Antibodies via Breast Milk

Multiple studies show that there are antibodies in a vaccinated mother’s milk. This has led some women to try to restart breastfeeding and others to share milk with friends’ children.

#antibodies, #breastfeeding, #coronavirus-2019-ncov, #immune-system, #research, #vaccination-and-immunization

Researchers Are Hatching a Low-Cost Coronavirus Vaccine

A new formulation entering clinical trials in Brazil, Mexico, Thailand and Vietnam could change how the world fights the pandemic.

#antibodies, #bangkok-thailand, #biology-and-biochemistry, #brazil, #clinical-trials, #coronavirus-2019-ncov, #drugs-pharmaceuticals, #eggs, #factories-and-manufacturing, #gates-bill-and-melinda-foundation, #immune-system, #influenza, #mclellan-jason-researcher, #mers-middle-east-respiratory-syndrome, #thailand, #vietnam, #your-feed-health, #your-feed-science

Researchers Are Hatching a Low-Cost Covid-19 Vaccine

A new formulation entering clinical trials in Brazil, Mexico, Thailand and Vietnam could change how the world fights the pandemic.

#antibodies, #bangkok-thailand, #biology-and-biochemistry, #brazil, #clinical-trials, #coronavirus-2019-ncov, #drugs-pharmaceuticals, #eggs, #factories-and-manufacturing, #gates-bill-and-melinda-foundation, #immune-system, #influenza, #mclellan-jason-researcher, #mers-middle-east-respiratory-syndrome, #thailand, #vietnam, #your-feed-health, #your-feed-science

Virus Variants Threaten to Draw Out the Pandemic, Scientists Say

Declining infection rates over all masked a rise in more contagious forms of the coronavirus. Vaccines will stop the spread, if Americans postpone celebration just a bit longer.

#astrazeneca-plc, #brazil, #coronavirus-2019-ncov, #disease-rates, #europe, #florida, #germany, #great-britain, #immune-system, #influenza, #johnsonjohnson, #moderna-inc, #novavax-inc, #oxford-university, #pfizer-inc, #vaccination-and-immunization, #your-feed-science

Getting One Vaccine Is Good. How About Mix-and-Match?

Researchers are exploring the possible benefits of pairing doses from two different Covid-19 vaccines.

#astrazeneca-plc, #clinical-trials, #coronavirus-2019-ncov, #ebola-virus, #gamaleya-research-institute-of-epidemiology-and-microbiology, #great-britain, #immune-system, #pfizer-inc, #proteins, #russia, #vaccination-and-immunization, #your-feed-health, #your-feed-science

A Changing Gut Microbiome May Predict How Well You Age

People whose gut bacteria transformed over the decades tended to be healthier and live longer.

#bacteria, #diet-and-nutrition, #digestive-tract, #fiber-dietary, #immune-system, #microbiology, #weight

Coronavirus Reinfections Are Rare, Danish Researchers Report

People over 65 are more likely to experience a second bout with the virus, according to a large study of medical records.

#coronavirus-2019-ncov, #denmark, #elderly, #immune-system, #lancet-the-journal, #research, #tests-medical, #vaccination-and-immunization, #your-feed-science

Some Long Covid-19 Patients Feel Better After Vaccine Doses

It is too soon to tell whether the shots have a broad beneficial effect on patients with continuing issues, but scientists are intrigued and beginning to study the phenomenon.

#autoimmune-diseases, #chronic-condition-health, #coronavirus-2019-ncov, #immune-system, #moderna-inc, #pfizer-inc, #research, #vaccination-and-immunization, #your-feed-healthcare, #your-feed-science

Virus Variants Likely Evolved Inside People With Weak Immune Systems

Growing evidence suggests that people with cancer and other conditions that challenge their immune systems may be incubators of mutant viruses.

#antibodies, #cancer, #coronavirus-2019-ncov, #immune-system, #leukemia, #your-feed-science

Ebola Survivor Infected Years Ago May Have Started New Outbreak

Genetic sequencing of virus samples from patients in Guinea suggest that the new outbreak is a continuation of the 2014-16 epidemic.

#centers-for-disease-control-and-prevention, #congo-democratic-republic-of-congo-kinshasa, #ebola-virus, #genetics-and-heredity, #guinea, #immune-system, #institut-pasteur, #university-of-edinburgh, #university-of-nebraska, #your-feed-science

Women Report Worse Side Effects After a Covid Vaccine

Men and women tend to respond differently to many kinds of vaccines. That’s probably because of a mix of factors, including hormones, genes and the dosing of the shots.

#clinical-trials, #estrogen, #hormones, #immune-system, #men-and-boys, #testosterone, #vaccination-and-immunization, #women-and-girls, #your-feed-healthcare, #your-feed-science

Her Eyelid Drooped and She Kept Getting Weaker. What Was Going On?

Dozens of tests turned up nothing. Then a specialist had a theory.

#emergency-medical-treatment, #immune-system, #tests-medical

Johnson & Johnson Will Test its Vaccine in Infants

The company’s coming trials will also involve pregnant women and people whose immune systems are compromised.

#babies-and-infants, #children-and-childhood, #clinical-trials, #coronavirus-2019-ncov, #drugs-pharmaceuticals, #immune-system, #internal-essential, #johnsonjohnson, #vaccination-and-immunization

Why Common Colds Might Spike When Kids Return to School

Hong Kong schools reported a surge in colds when students resumed in-person learning. Here’s what it means for kids in the U.S., and what parents can do to prepare.

#colds, #coronavirus-reopenings, #education-k-12, #immune-system, #parenting, #shutdowns-institutional, #viruses

Studies Suggest People Who Had Covid-19 Should Get Single Vaccine Dose

New studies show that one shot of a vaccine can greatly amplify antibody levels in those who have recovered from the coronavirus.

#antibodies, #biontech-se, #coronavirus-2019-ncov, #immune-system, #moderna-inc, #pfizer-inc, #research, #sars-severe-acute-respiratory-syndrome, #your-feed-science

Covid Vaccines for Kids Are Coming, but Not for Many Months

Pfizer and Moderna are testing their vaccines on children 12 and older and hope to have results by the summer.

#children-and-childhood, #clinical-trials, #coronavirus-2019-ncov, #disease-rates, #immune-system, #johnsonjohnson, #moderna-inc, #novavax-inc, #parenting, #pfizer-inc, #research, #teenagers-and-adolescence, #vaccination-and-immunization, #your-feed-science

Millie Hughes-Fulford, NASA Shuttle Scientist, Dies at 75

As the space agency’s first female payload specialist, she conducted experiments about the impact of weightlessness on astronauts’ immune systems and loss of bone mass.

#columbia-space-shuttle, #deaths-obituaries, #hughes-fulford-millie, #immune-system, #national-aeronautics-and-space-administration, #research, #space-and-astronomy, #women-and-girls

Childhood Colds Do Not Prevent Coronavirus Infection, Study Finds

New research casts doubt on the idea that prior infections with garden-variety coronaviruses might shield some people, particularly children, amid the pandemic.

#antibodies, #cell-journal, #colds, #coronavirus-2019-ncov, #disease-rates, #great-britain, #immune-system, #pennsylvania, #science-journal, #your-feed-science

A Few Covid Vaccine Recipients Developed a Rare Blood Disorder

A link to the vaccines is not certain, and investigations are underway in some reported cases.

#centers-for-disease-control-and-prevention, #coronavirus-2019-ncov, #coronavirus-risks-and-safety-concerns, #food-and-drug-administration, #immune-system, #michael-gregory-1964-2021, #vaccination-and-immunization, #your-feed-healthcare

In the Vaccine Scramble, Cancer Patients Are Left Behind

Those with compromised immune systems are often advised to get the shots under medical supervision, but their cancer centers can’t always provide them.

#cancer, #chemotherapy, #coronavirus-2019-ncov, #immune-system, #vaccination-and-immunization

Long-Haul Covid and the Chronic Illness Debate

What persistent Covid cases might have in common with chronic fatigue syndrome and Lyme disease, and why it matters.

#chronic-condition-health, #chronic-fatigue-syndrome, #coronavirus-2019-ncov, #immune-system, #lyme-disease, #united-states