New Covid Vaccine Against Variants

Moderna said Wednesday its updated fall Covid booster, which is pending approval from the Food and Drug Administration, performed well against the highly mutated BA.2.86 variant.

The Covid vaccines in use in India are providing cover for the original Wuhan strain but if the need for another booster dose is felt as new variants emerge, it should be able to provide protection against all circulating as well as future strains

A heat-stable COVID-19 vaccine that is being developed in India and does not need cold chain storage has generated strong antibody response against coronavirus variants, including Delta and Omicron, according to a study on mice.

An inhaled form of COVID-19 vaccine developed by scientists at McMaster University in Canada can provide broad, long-lasting protection against the SARS-CoV-2 variants of concern, a preclinical study has found

WHO experts warned Tuesday that simply repeating booster doses of the original Covid vaccines was not a viable strategy against emerging variants, and called for new jabs that better protect against transmission.

The COVID-19 vaccines can be "tweaked" to provide protection against new variants of the virus, All India Institute of Medical Sciences (AIIMS), Delhi, Director Dr Randeep Guleria has said.

Newer Covid variants - such as Delta and Omicron -carry mutations to the spike protein, which can make them less recognisable to the immune cells and antibodies stimulated by vaccination.

Johnson & Johnson's vaccine produced virtually no antibody protection against the omicron coronavirus variant in a laboratory experiment, underlining the new strain's ability to get around one pillar of the body's defenses.

Booster COVID-19 vaccines increase the body's immune response and remain the best single defence against the new Omicron variant of coronavirus, British Prime Minister Boris Johnson said on Tuesday.

Existing Covid-19 inoculations will struggle against the fast-spreading Omicron variant, the head of vaccine manufacturer Moderna warned Tuesday, as countries ramp up vaccination programmes and impose further restrictions to curb growing concern.

The EU drug regulator said on Tuesday it could approve vaccines adapted to target the Omicron variant of the coronavirus within three to four months if needed, but that existing shots would continue to provide protection.

Drugmaker Moderna set off fresh alarm bells in financial markets on Tuesday as the firm's chief warned that COVID-19 vaccines are unlikely to be as effective against the Omicron variant as they have been against the Delta version.

Vaccines that have been directed towards the spike protein of the virus may find difficulty in mounting adequate immunity against the mutated version because of the structural changes that have been reported in the viral genome, according to WHO.

It was meant to be a summer vacation to celebrate. Thousands of revelers flocked to Provincetown, Massachusetts, for the July Fourth holiday, fully immunized against COVID-19 and ready to enjoy new freedoms, including socializing without face masks.

People inoculated against COVID-19 are just as likely to spread the delta variant of the virus to contacts in their household as those who haven't had shots, according to new research.

Moderna said Wednesday its updated fall Covid booster, which is pending approval from the Food and Drug Administration, performed well against the highly mutated BA.2.86 variant.

The Covid vaccines in use in India are providing cover for the original Wuhan strain but if the need for another booster dose is felt as new variants emerge, it should be able to provide protection against all circulating as well as future strains

A heat-stable COVID-19 vaccine that is being developed in India and does not need cold chain storage has generated strong antibody response against coronavirus variants, including Delta and Omicron, according to a study on mice.

An inhaled form of COVID-19 vaccine developed by scientists at McMaster University in Canada can provide broad, long-lasting protection against the SARS-CoV-2 variants of concern, a preclinical study has found

WHO experts warned Tuesday that simply repeating booster doses of the original Covid vaccines was not a viable strategy against emerging variants, and called for new jabs that better protect against transmission.

The COVID-19 vaccines can be "tweaked" to provide protection against new variants of the virus, All India Institute of Medical Sciences (AIIMS), Delhi, Director Dr Randeep Guleria has said.

Newer Covid variants - such as Delta and Omicron -carry mutations to the spike protein, which can make them less recognisable to the immune cells and antibodies stimulated by vaccination.

Johnson & Johnson's vaccine produced virtually no antibody protection against the omicron coronavirus variant in a laboratory experiment, underlining the new strain's ability to get around one pillar of the body's defenses.

Booster COVID-19 vaccines increase the body's immune response and remain the best single defence against the new Omicron variant of coronavirus, British Prime Minister Boris Johnson said on Tuesday.

Existing Covid-19 inoculations will struggle against the fast-spreading Omicron variant, the head of vaccine manufacturer Moderna warned Tuesday, as countries ramp up vaccination programmes and impose further restrictions to curb growing concern.

The EU drug regulator said on Tuesday it could approve vaccines adapted to target the Omicron variant of the coronavirus within three to four months if needed, but that existing shots would continue to provide protection.

Drugmaker Moderna set off fresh alarm bells in financial markets on Tuesday as the firm's chief warned that COVID-19 vaccines are unlikely to be as effective against the Omicron variant as they have been against the Delta version.

Vaccines that have been directed towards the spike protein of the virus may find difficulty in mounting adequate immunity against the mutated version because of the structural changes that have been reported in the viral genome, according to WHO.

It was meant to be a summer vacation to celebrate. Thousands of revelers flocked to Provincetown, Massachusetts, for the July Fourth holiday, fully immunized against COVID-19 and ready to enjoy new freedoms, including socializing without face masks.

People inoculated against COVID-19 are just as likely to spread the delta variant of the virus to contacts in their household as those who haven't had shots, according to new research.