Astronomers discover 83 supermassive black holes 13 billion light-years away

New Delhi, Jun 6: With 9,887 new positive cases reported in the last 24 hours, India's COVID-19 count touched 2,36,657 on Saturday surpassing Italy's latest tally of over 2.34 lakh, taking India to the sixth spot among countries with the highest caseloads of the virus.

The Union Ministry of Health and Family Welfare (MoHFW) said that India registered a spike of 9887 new cases and 294 deaths in the past 24 hours taking the tally to 1,15,942 active cases and 6642 deaths.

Today's count was the highest single-day spike in the country, which has now overtaken Italy, according to the tally posted by the Johns Hopkins University which posted that globally the coronavirus had infected over 66.64 lakh people and claimed over 3.91 lakh lives so far.

In india, the MoHFW informed that 1,14,073 persons have been cured/discharged/migrated so far.

Maharashtra remains the worst-hit State as the total number of COVID-19 positive cases reached 80,229. While the total number of active cases in the state stands at 42,224.

In Tamil Nadu, 28,694 cases have been detected so far while Delhi has reported 26,334 coronavirus cases.

Hyderabad, Jan 6: AIMIM president Asaduddin Owaisi on Monday expressed solidarity with students of Jawaharlal Nehru University in Delhi, following violence in the campus and said the "cruel attack" was meant to "punish"the students as they "dared to stand up".

"In solidarity with the brave students of JNU. This cruel attack is meant to 'punish' JNU students because they dared to stand up. It's so bad that even Union Ministers are tweeting helplessly. Modi Sarkar must answer why cops aresiding with goons," the Hyderabad MP tweeted.

The AIMIM has also tweeted expressing solidarity with the "students of JNU". "AIMIM stands in solidarity with the students of Jawaharlal Nehru University. Who feels threatened by the voice of students?," the party said in a tweet.

Violence broke out at the JNU on Sunday night as masked men armed with sticks and rods attacked students and teachers and damaged property on the campus, prompting the administration to call in police which conducted a flag march.

At least 28 people, including JNU Students' Union president Aishe Ghosh, were injured as chaos reigned on the campus for nearly two hours.

Beijing, Jun 18:  Besides washing hands and wearing masks, it is also important to close the toilet lid before flushing to contain the spread of COVID-19, as per a new study.

According to a new study cited by The Washington Post, scientists who simulated toilet water and airflows, have found that flushing a toilet can generate a plume of virus-containing aerosol particles that is widespread and can linger in the air long enough to be inhaled by others. The novel coronavirus has been found in the faeces of COVID-19 patients, but it remains unknown whether such clouds could contain enough virus to infect a person.

"Flushing will lift the virus up from the toilet bowl," co-author Ji-Xiang Wang, who researches fluids at Yangzhou University in Yangzhou, China, said in an email. Wang stressed that bathroom users "need to close the lid first and then trigger the flushing process" and wash hands properly if the closure is not possible. As one flushes the toilet with the lids open, bits of faecal matter swish around so violently that they can be propelled into the air, become aerosolised and then settle on the surroundings.

Experts call it the "toilet plume".Age-old studies have been made to understand the potential for airborne transmission of infectious disease via sewage, and the toilet plume's role. Scientists who have seeded toilet bowls with bacteria and viruses have found contamination of seats, flush handles, bathroom floors and nearby surfaces. This is one reason we are told to wash our hands after visiting the toilet. Public bathrooms are well known to contribute to the spread of viruses that transmit via ingestion, such as the noroviruses that haunt cruise ships. However, their role in the transmission of respiratory viruses has not been established, said Charles P Gerba, a microbiologist at the University of Arizona."The risk is not zero, but how great a risk it is, we do not know. The big unknown is how much virus is infectious in the toilet when you flush it ... and how much virus does it take to cause an infection," said Gerba, who has studied the intersection of toilets and infectious disease for 45 years.

A study published in March in the journal Gastroenterology found significant amounts of coronavirus in the stool of patients and determined that viral RNA lasted in faeces even after the virus cleared from the patients` respiratory tracts. While another study in the journal Lancet found coronavirus in faeces up to a month after the illness had passed.

Scientists around the world are now studying sewage to track the spread of the virus. According to the researchers, the presence of the virus in excrement and the gastrointestinal tract raises the prospect of transmission via toilets, because many COVID-19 patients experience diarrhoea or vomiting.

A study of air samples in two hospitals in Wuhan, China found that although coronavirus aerosols in isolation wards and ventilated patient rooms were very low, "it was higher in the toilet areas used by the patients".The Centers for Disease Control and Prevention (CDC) says it remains "unclear whether the virus found in faeces may be capable of causing COVID-19," and "there has not been any confirmed report of the virus spreading from faeces to a person".For now, the CDC characterises the risk as low based on observations from previous outbreaks of other coronaviruses such as severe acute respiratory syndrome (SARS) and the Middle East respiratory syndrome (MERS). Wang decided to use computer models to simulate toilet plumes while isolating at home, as per Chinese government orders and thinking about how a fluids researcher "could contribute to the global fight against the virus".

Published in the journal Physics of Fluids, the study found that flushing of both single-inlet toilets, which push water into the bowl from one port, and annular-inlet toilets, which pour water into the bowl from the rim's surrounding edge with even greater energy, results in "massive upward transport of virus".

Particles can reach heights of more than three feet and float in the air for more than a minute, it found. The paper recommends not just lid-closing and hand-washing, it urges manufacturers to produce toilets that close and self-clean automatically. It also suggests that toilet-users should wipe down the seat. Gerba, however, said seats should not be a major concern.

Research has found that public and household toilet seats are typically the cleanest surfaces in restrooms, he said, probably because so many people already wipe them off before using them. Also, he said of SARS-CoV-2, the virus that causes COVID-19, "I don't think it's butt-borne, so I don`t think you have to worry."Gerba, who has been studying coronavirus transmission for two decades to investigate the role of a toilet flushing in a SARS outbreak stresses "flush and run" when using a public toilet without a lid. Gerba also said that people should wash hands well post-flushing and use hand sanitiser after leaving the restroom. "Choose well-ventilated bathrooms if possible and do not hang around the restroom in any case," added Gerba.