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Studies find ‘immune imprinting’ might be making bivalent boosters less effective: What is it and how does it work?Subscriber Only

January 24, 2023 01:12 IST

Over the years, scientists have realised that imprinting acts as a database for the immune system, helping it put up a better response to repeat infections.

Wine is poured into glasses at a vineyard in Penticton, BC, Canada.

Canada says ‘no amount’ of alcohol is healthy. Here’s whySubscriber Only

January 20, 2023 13:32 IST

Developing from years of research, Canada's new recommendations state that even small amounts of alcohol can have serious health consequences.

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Study finds ‘hybrid immunity’ most effective against severe Covid: the findings, implications explainedSubscriber Only

January 20, 2023 13:37 IST

A study has found that "hybrid immunity" offers better protection against severe Covid-19 as compared to immunity after infection alone. What is hybrid immunity? What are the implications of the study?

This trend is yet to be reflected in India. Even with improvements in treatment, both the incidence of cancer and mortality continue to rise in the country. (Photo: Getty Images/Thinkstock)

What will it take for India to replicate cancer decline like in the USSubscriber Only

January 20, 2023 21:18 IST

A new report says cancer deaths in the US have declined by a third over the past three decades. What is the situation in India, and what will it take to replicate the success in the US?

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How bad is the problem of antibiotic resistance, and how to solve itSubscriber Only

January 16, 2023 14:51 IST

Antibiotic resistance threatens to take us back to a time before penicillin when the majority of deaths were caused by infections. What are we doing to solve the crisis?

Vaccination and infection-induced immunity have a major role to play in this as well.

Why prevention remains the best strategy against BF.7, other variantsSubscriber Only

January 10, 2023 08:27 IST

Unfortunately, the virus has so far always been a step ahead of us. So we cannot be certain of what it will do next and when. We should always be prepared for the worst case scenario while hoping for the best.

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What is the new US FDA-approved treatment for early Alzheimer’s?Subscriber Only

January 9, 2023 07:19 IST

The approval of the drug, lecanemab, to be marketed as Leqembi, is likely to generate considerable interest from patients and physicians.

After a meeting with Chinese scientists, the WHO’s technical advisory group on virus evolution (TAG-VE) confirmed that the local cases in China were caused by the BF.7 and BA.5.2 sub-variants of Omicron. (File)

BF.7 and BA.5.2: The Omicron sub-variants driving the China surgeSubscriber Only

January 7, 2023 13:15 IST

Both variants are present in India as well, but they have not led to any spike in infections, and are unlikely to pose any serious threat. China's problem is not these variants, but the immune-naïveté of the bulk of its population.

 Passengers, including one wearing full-bodied protective gear, at the Shanghai Railway Station in China on Dec. 14, 2022. In the absence of credible information from the Chinese government, researchers around the world are looking for any clues to determine the size and severity of the COVID-19 surge. (File/Qilai Shen/The New York Times)

How bad is China’s Covid outbreak? It’s a scientific guessing gameSubscriber Only

December 31, 2022 07:08 IST

In Hong Kong, one team of researchers pored over passenger data from five Beijing subway lines to determine the potential spread.

Volunteers received training on how to conduct safe and dignified burials for Ebola victims in Mubende, Uganda, in October. (Luke Dray/Getty Images/New York Times)

Epidemics that weren’t: How countries shut down recent outbreaksSubscriber Only

December 28, 2022 07:04 IST

Over the past couple of years, the headlines and the social feeds have been dominated by outbreaks around the world. But a dozen more outbreaks flickered, threatened — and then were snuffed out. Here's a list of cases where countries (including India) got it right.

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‘Brain-eating amoeba’ kills South Korean man: What is the infectionSubscriber Only

December 29, 2022 13:55 IST

The brain-eating amoeba destroys brain tissues and causes a dangerous infection called primary amebic meningoencephalitis.

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Amid China scare, Covid vaccination picks up in India: Here is what you need to knowSubscriber Only

December 27, 2022 07:27 IST

A question that remains unaddressed is whether people would be asked to take second booster shots in case of a fresh resurgence in Covid infections.

Passengers undergoing random testing for covid at the Delhi airport.

Centre’s orders on travel, oxygen stock: Here are the Covid developments you need to know todaySubscriber Only

December 26, 2022 08:57 IST

Experts have pointed out that the situation in India right now is markedly different from China, as most people here have natural immunity through previous infections and have also been vaccinated.

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The FDA now says it plainly: Morning-after pills are not abortion pillsSubscriber Only

December 24, 2022 16:03 IST

Since the Supreme Court overturned the ruling that ensured the national right to abortion, advocates of abortion rights have warned that some conservative states may outlaw or restrict morning-after pills on the erroneous grounds that they might cause abortions.

A woman wearing a face mask walks through a busy shopping district in Mumbai, India, Thursday, Dec. 22, 2022.  (AP Photo/Rafiq Maqbool)

Fact Check: No, the XBB variant is not more dangerous than DeltaSubscriber Only

December 24, 2022 08:57 IST

XBB is the dominant variant in India now. But in most people it will cause no more than a fever, cough, and cold. Even case counts have been low — only 158 daily on average during the week ended December 19.

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How to take a precaution dose of the Covid-19 vaccine, as cases surge in ChinaSubscriber Only

December 24, 2022 08:57 IST

If you haven’t already taken your booster shot, you must do so ASAP. But if you have already been boosted, you cannot take a fourth shot as yet. 

Congress leader Rahul Gandhi waves at a crowd of supporters during the Bharat Jodo Yatra

Cong-Govt row over Rahul Yatra: What’s the Covid-19 situation in India now?Subscriber Only

December 23, 2022 07:01 IST

The number of Covid-19 cases continues to remain low in India, with an average of only 158 cases reported daily during the week ended December 19.

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Cut coffee intake if you have severe high BP: here’s whySubscriber Only

December 22, 2022

According to the United States Food and Drug Administration (FDA), an 8-ounce (about 240 ml) cup of green or black tea has 30-50 mg of caffeine, and an 8-ounce cup of coffee has closer to 80-100 mg.

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Amid Covid alert, what govt is doing: Sample tracking to check for new variants, people urged to wear masksSubscriber Only

December 23, 2022 07:12 IST

Here's a status check on Covid cases in India and the world, and the steps the government is taking.

The BF.7 is the same as BA.5.2.1.7, which is a sub-lineage of the Omicron sub-lineage BA.5. (file)

What is BF.7, the Omicron sub-variant driving the new surge in China?Subscriber Only

December 21, 2022 16:21 IST

This isn’t the first time that BF.7 has made news — in October, it started to replace the variants that were then dominant in the United States and several European countries.

Workers manufacture antigen testing kits for Covid-19 at a workshop in Jiangsu province,on Monday. (Reuters)

Virus and fear surge in China: what’s happening and why?Subscriber Only

December 25, 2022 15:10 IST

China has nearly 1.4 billion people, most of whom are susceptible to infection. The rapid spread of Covid-19 could mean very large numbers of people falling sick at the same time.

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Why is everyone suddenly obsessed with buccal fat?Subscriber Only

December 20, 2022 18:52 IST

“There are facial compartments that define the shape of the face, and there are superficial ones and deep ones,” said Dr. Andrew Jacono, a New York City plastic surgeon best known for giving Marc Jacobs a face-lift. “Buccal fat is one of the deep facial fat compartments that kind of give structure to the cheek area.” It’s not affected by weight fluctuation, Jacono said, “we’re born with how much we have.”

Of the 12,387 organs — kidney, liver, heart, lungs, and pancreas among others — harvested in 2021, only 1,743 — a little more than 14% — were from deceased donors.

Organ donations rise after Covid-19 dip: What do the numbers show?Subscriber Only

December 24, 2022 09:00 IST

Organ donation numbers in 2021 were close to the highest they have been in the last five years. But deceased donations, the key to addressing India's needs, are still not common enough. Here's why — and how this situation can be addressed.

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Thoracic aortic aneurysm: Condition that killed football writer Grant Wahl during Qatar World CupSubscriber Only

December 16, 2022 07:15 IST

An aneurysm is a localised bulging of a blood vessel that may result in a rupture. Aneurysms get worse over time, and sometimes present no symptoms.

Representational image of a vaccine being prepared for administration.

WHO cervical cancer target still distant: Lancet studySubscriber Only

December 15, 2022 07:48 IST

Though the incidence of cervical cancer has decreased in many parts of the world —notably in Latin America, Asia, Western Europe, and North America — over the past three decades, the burden remains high in many low- and middle-income countries.

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