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Unicef, along with the World Health Organization, launched the "Hand Hygiene for All" initiative to support the development of national roadmaps to accelerate and sustain progress toward making hand hygiene a mainstay in public health interventions. Wikimedia Commons

A World Health Organization (WHO) expert said that in light of the accelerating increase in new cases — especially in some populous countries — the COVID-19 pandemic is now well-established at a global level.

Michael Ryan, Executive Director of WHO Health Emergencies Program, made the remarks at a press conference in Geneva on Monday, responding to a question regarding the highest daily number of confirmed cases globally recorded on Sunday and the possible reason behind it, Xinhua news agency reported.


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“The situation is definitely accelerating in a number of countries with larger populations and that is most certainly contributing to this overall increased number,” he explained.

Ryan said that some of that increase may be attributed to increased testing, but the WHO does not believe that testing is the main reason.


WHO does not believe that testing is the main reason for increase of cases. Wikimedia Commons

“Hospital admissions are also rising in a number of countries, deaths are also rising, and they’re not due to increased testing per se,” he noted.

He said that as the virus has reached some of the most populous countries and most populated areas in the world, and as the epidempandemic, ic is now moving towards a peak in a number of large countries at the same time, they contribute to a surge in cases globally.

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“Now in Europe … you’re seeing the curves decrease. In Southeast Asia, you’re seeing the curves decrease. And then the overall numbers increase, which clearly means the Americas are contributing, South Asia is contributing very much, but also there are countries in the Middle East and there are countries in Africa that are also contributing to that overall increase. ”

The latest numbers from the WHO show that more than 183,000 new cases of COVID-19 were reported worldwide on Sunday, which was easily the most in a single day so far. More than 8.8 million cases have now been reported to the WHO, and more than 465,000 people have lost lives. (IANS)


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Milky Way galaxy as seen from Chitkul Valley

NASA's Chandra X-ray Observatory has for the first time spotted signs of a planet transiting a star outside of the Milky Way galaxy, opening up a new avenue to search for exoplanets at greater distances than ever before.

The possible exoplanet -- or planets outside of our Solar System -- candidate is located in the spiral galaxy Messier 51 (M51), also called the Whirlpool Galaxy because of its distinctive profile, NASA said in a statement.

Astronomers have, so far, found all other known exoplanets and exoplanet candidates in the Milky Way galaxy, almost all of them less than about 3,000 light-years from Earth.

An exoplanet in M51 would be about 28 million light-years away, meaning it would be thousands of times farther away than those in the Milky Way, NASA said.

"We are trying to open up a whole new arena for finding other worlds by searching for planet candidates at X-ray wavelengths, a strategy that makes it possible to discover them in other galaxies," said Rosanne Di Stefano of the Center for Astrophysics at Harvard and Smithsonian (CfA) in Cambridge, Massachusetts, who led the study.

The findings are published in the journal Nature Astronomy.

The exoplanet candidate was spotted in a binary system called M51-ULS-1, located in M51. This binary system contains a black hole or neutron star orbiting a companion star with a mass about 20 times that of the Sun. The X-ray transit they found using Chandra data lasted about three hours, during which the X-ray emission decreased to zero.

Based on this and other information, the team estimates the exoplanet candidate in M51-ULS-1 would be roughly the size of Saturn and orbit the neutron star or black hole at about twice the distance of Saturn from the Sun.

The team looked for X-ray transits in three galaxies beyond the Milky Way galaxy, using both Chandra and the European Space Agency's XMM-Newton. Their search covered 55 systems in M51, 64 systems in Messier 101 (the "Pinwheel" galaxy), and 119 systems in Messier 104 (the "Sombrero" galaxy).

However, more data would be needed to verify the interpretation as an extragalactic exoplanet. One challenge is that the planet candidate's large orbit means it would not cross in front of its binary partner again for about 70 years, thwarting any attempts for a confirming observation for decades, NASA said.

Named in honor of the late Indian-American Nobel laureate, Subrahmanyan Chandrasekhar, the Chandra X-ray Observatory is the world's most powerful X-ray telescope. It has eight times greater resolution and is able to detect sources more than 20-times fainter than any previous X-ray telescope.

Known to the world as Chandra (which means "moon" or "luminous" in Sanskrit), Chandrasekhar was widely regarded as one of the foremost astrophysicists of the twentieth century. (IANS/JB)


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