SCIENCE
Delaying 2nd Covid vax dose in under 65 may cut deaths: Study
These conditions include a one dose vaccine effectiveness (efficacy) of 80 per cent or higher and vaccination rates of 0.1 per cent to 0.3 per cent of the population per day, according to the study, published by The BMJ. If these conditions apply, the strategy could prevent between 47 and 26 deaths per 100,000 people, respectively, the study noted.
Covid vax safe in pregnancy, does not damage placenta: Study
The placenta is the first organ that forms during pregnancy. It performs duties for most of the fetus' organs while they're still forming, such as providing oxygen while the lungs develop and nutrition while the gut is forming.
People with HIV more likely to get sick with, die from Covid: Study
The study led by Pennsylvania State University researchers found that people living with HIV had a 24 per cent higher risk of SARS-CoV-2 infection and a 78 per cent higher risk of death from Covid-19 than people without HIV. The most common comorbidities among the HIV-positive population were hypertension, diabetes, chronic obstructive pulmonary disease and chronic kidney disease.
India's Geo Imaging Satellite GISAT-1 launch further delayed
The GISAT-1 will be the country's first sky eye or earth observation satellite to be placed in geostationary orbit. The satellite supposed to be put into orbit this month is all set to be delayed as employees at various centres of Indian Space Research Organisation (ISRO) including that of the rocket launch centre in Sriharikota were affected by Covid-19.
Scientists develop coronavirus protocols to quickly spot mutants
The global consortium, led by researchers at Goethe University Frankfurt and TU Darmstadt, provides working protocols that will allow laboratories around the world to work quickly and reproducibly on SARS-CoV-2 proteins and also the mutants to come. When the Covid-19 virus mutates, this initially only means that there is a change in its genetic blueprint.
Elon Musk to send Dogecoin-funded satellite to Moon
The DOGE-1 is a CubeSat to acquire "lunar-spatial intelligence" using onboard cameras and sensors, reports The Verge. The satellite is being developed by Geometric Energy Corporation and it will be flown on board a Falcon 9 rocket in the first quarter of 2022. "We're excited to launch DOGE-1 to the Moon!" said Tom Ochinero, vice president of commercial sales at SpaceX.
NASA's Ingenuity Mars helicopter completes first one-way trip
Ingenuity Mars flew to the Red Planet on February 18, while being attached to the belly of NASA's Perseverance rover. On its fifth flight on Mars, the mini-helicopter took the one-way trip from Wright Brothers Field to a new airfield 423 feet (129 metres) to the south. This was the first time it flew to a new landing site, the US space agency said on Saturday.
SpaceX launches 60 Starlink satellites in record 10th liftoff
The veteran Falcon 9 rocket blasted off before dawn from Space Launch Complex 40 here at Cape Canaveral Space Force Station at 2:42 a.m. EDT (06.42 GMT), marking the company's 14th launch of the year. It was also one for the record books as the flight was this particular booster's 10th launch and landing attempt, the company said in a statement.
Covid-19 infection is transmitted via air, says US CDC
People release respiratory fluids during exhalation -- quiet breathing, speaking, singing, exercise, coughing, sneezing in the form of droplets. While large droplets settle out of the air within seconds to minutes, very fine droplets can remain suspended in the air for minutes to hours. These droplets carry viruses and transmit infection, said the agency's latest science brief as part of its public guidelines on Covid-19.
Why some patients test positive for Covid long after recovery
Researchers from the Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology (MIT) in the US, showed that genetic sequences from the RNA virus SARS-CoV-2 can integrate into the genome of the host cell through a process called reverse transcription. These sections of the genome can then be "read" into RNAs, which could potentially be picked up by a PCR test.
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