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Air pollution’s link to Covid needs attention

Decision-makers cannot afford to be lulled into complacency by the lack of an active Covid-19 wave, or smoggy skies — the two crises have claimed lives

The authors of the study published in Environmental Health Perspectives believe the microscopic particles in bad air cripple the immune system’s response by inducing “oxidative stress” and causing inflammation, effectively decreasing the production of antibodies and other immune responses. (ANI)
Updated on Apr 10, 2023 07:31 PM IST
ByHT Editorial

Covid infection through womb caused brain damage in two infants: Study

Neither of the babies tested Covid positive at birth but developed high levels of antibodies in their blood against the virus.

Doctors earlier suggested possibilities of infection from pregnant mothers to their infant through placenta but there was no direct evidence until now. (Getty Images)
Updated on Apr 09, 2023 06:51 AM IST
BySnehashish Roy

High air pollution hits Covid vaccine response: Study

The research team measured three kinds of antibodies (IgM, IgG and IgA) to five viral antigens (three of them on the spike protein contained in the vaccine).

A woman gets a booster dose of the Covid-19 vaccine in Srinagar.(PTI)
Updated on Apr 07, 2023 06:06 AM IST
By, New Delhi

Pfizer’s third Covid shot boosts antibodies in kids 5 to 11

The companies plan to file for emergency-use authorization in the US in the coming days based on the results, according to a statement Thursday. They will also submit the data to other regulators around the world.

Representaioanl image.(HT_PRINT)
Published on Apr 14, 2022 07:59 PM IST
Bloomberg |

Why antibodies aren't the only defense against Omicron

These Y-shaped proteins have made top news recently because Covid-19 shots don't produce as many of them that work against the heavily mutated Omicron variant compared to past strains -- at least, not without a booster.

Trained by both vaccines and infection, antibodies grab on to the spike protein that studs the surface of the coronavirus, stopping it from penetrating cells and sickening the host. (Representational Image)
Updated on Dec 17, 2021 08:11 AM IST
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