Page 2 - Immunity

UK study shows second Covid booster gives higher immunity than first

The UK rolled out fourth doses to over-75s and those over the age of 12 who are immunosuppressed in April. It is also offered in Israel and Germany

What is Corbevax, the Covid-vaccine for your 5-year-old?

The DCGI has recently approved the emergency use of Covid-19 vaccine Corbevax for children aged five to 12. Find out more about the new vaccine and how it can boost the immune response

Precaution dose of Covid vaccine will protect family, society, says expert

Asked about the dominant variant in the present surge, Dr Suresh Kumar said that the omicron sub-variant has been prevalent and ruled out the XE variant present in the incoming patients

Endemic: Fourth Covid wave unlikely as immunity levels rise, say experts

Steady and stable infection rate with minor fluctuations for four weeks or more is when the disease is in endemic stage.

30% individuals lose Covid vaccine-acquired immunity 6 months: Study

As much as 30 per cent individuals lose vaccine-acquired immunity after six months, according to a study conducted by AIG Hospitals along with the Asian Healthcare Foundation on Vaccine Immunity. The study was conducted on 1,636 healthcare workers who were fully vaccinated against COVID-19, a press release from AIG Hospitals said. "Our study results were at par with other global studies where we found that almost 30 per cent individuals had antibody levels below protective immunity level of 100 AU/ml after six months. These individuals were majorly above 40 years with co-morbidities like hypertension and diabetes. Out of the total, 6 per cent did not develop any immune protection at all," Dr D Nageshwar Reddy, Chairman, AIG Hospitals said. The results clearly indicated that with age, immunity waning is directly proportional which means that younger people have more sustained antibody levels than the elderly population. One of the most important results of the study showed that peop

'Durability of immunity post Covid infection persists for about 9 months'

The virus infects an individual in natural settings, and elicits three kinds of responses - antibody mediated, cell mediated immunity, and immunological memory, said ICMR Director General

Boosters: Experts say mixing vaccines may give better immune cover

But some virologists feel two-dose immunity, along with memory-cell action, may be sufficient

One Covid-19 vaccine makes more antibodies than another. Does it matter?

Now, subtle differences between the Pfizer Inc.-BioNTech SE and Moderna Inc. vaccines are emerging across patient groups over time.

Herpes, hair fall, nail issues: Doctors caution about post-Covid problems

From reactivation of herpes infection to loss of hair, several Covid patients in recovery phase are facing one dermatological complication or another due to lowered immunity, say doctors

Vaccination boosts natural immunity against Covid-19, shows study

Vaccination boosts the natural immunity so much that they are likely protected even from the emerging variants

Covid-19 jabs won't raise immunity in organ transplant patients: Study

Patients, who had organ transplants, remain vulnerable to Covid-19 infections even after a second vaccine dose, finds a study

Decoded: SIR Model to herd immunity, making sense of pandemic jargon

The new mutant variants of Covid-19 are said to be more infectious, with higher R0

China needs to vaccinate over 1 bn people to build immunity: Official

China needs to vaccinate more than a billion people in order to build an immune protection barrier against the Covid-19, a senior Chinese immunologist has said.

Zomato to soon deliver dietary, skin supplements, says CEO Deepinder Goyal

In a tweet, Goyal said: "Functional foods.. coming soon to your favourite food app. @zomato".

Tata Consumer strengthens wellness portfolio with sharper focus on immunity

The 10,000-crore company has also reformulated its Tetley green tea bag range in India with added Vitamin C and has relaunched it as Tetley Green Tea Immune

World Coronavirus Dispatch: The case for showing proof of immunity

Trump admin refused Pfizer's offer to get the US more doses, Japan prepares $700 billion stimulus, Thailand uses drones for border surveillance, and other pandemic related news from across the globe

Seriously ill Covid-19 patients' antibodies affect immune system: Study

Researchers have found that people seriously ill with the Covid-19 disease have antibodies that are blocking so-called interferons, which are an important part of the body's immune mechanism

India Coronavirus Dispatch: Delhi's task force works to stem rural spread

Durga Puja concerns in Bengal, Ahmedabad's private hospitals bear huge chunk of caseload, and herd immunity becomes highly politicised--news on how the country is coping with the pandemic

Immunity hurdle for a shot at Covid vaccine; govt working on priority list

Rapid antibody tests at dedicated Covid-19 vaccination centres to act as screening tool

Bharat Biotech's Covaxin succeeds in challenge trials on Rhesus monkeys

The results showed protective efficacacy, increasing Sars-CoV-2 specific IgG and neutralising antibodies reducing the replication of the virus in the nasal cavity, throat and lung tissues of monkey