Chinese engineer marries robot after failing to find bride

A shrimp seller at the wet market in the Chinese city of Wuhan believed to be the centre of the coronavirus pandemic, may be the first person to have tested positive for the disease, a media report said on Saturday.

The report by the London-based Metro newspaper said that 57-year-old woman, named by the Wall Street Journal as Wei Guixian, was selling shrimp at the Huanan Seafood Market when she developed what she thought was a cold last December.

Chinese digital news outlet, The Paper has said that she may be epatient zero'.

Wei was told by doctors her illness was "ruthless" and other workers at the market had come to the Wuhan Union Hospital with the same symptoms, the Metro newspaper report quoted the outlet as saying.

"Every winter, I suffer from the flu, so I thought it was the flu," the woman was quoted as saying by The Paper news outlet.

The shrimp seller added that she believed she contracted the coronavirus from the shared toilet in the market.

She said the fatal disease would have killed fewer people if the government had acted sooner.

Wuhan Municipal Health Commission has confirmed that Wei was among the first 27 people to test positive for the coronavirus.

It said she was one of 24 cases with direct links to the market, the Metro newspaper reported.

Though Wei may be "patient zero", it does not mean she is the first person to have contracted the virus, added the Metro report.

Chinese researchers have claimed that the first person diagnosed with the airborne virus had no contact with the seafood market and was identified on December 1, 2019.

Wei was later quarantined when a connection was made between the bug and the market before recovering in January.

As of Saturday, the global number of coronavirus cases stood at 104,837 with 27,862 deaths, according to the latest update by the Washington-based Johns Hopkins University.

The US has the highest number of cases at 104,837, followed by Italy 86,498 and China 81,948.

Italy has recorded the highest number of fatalities with 9,134 deaths, followed by Spain and China, at 5,138 and 3,299, respectively.

Melbourne, Apr 10: Scientists have identified six drug candidates from more than 10,000 compounds that may help treat COVID-19.

The research, published in the journal Nature, tested the efficacy of approved drugs, drug candidates in clinical trials and other compounds.

"Currently there are no targeted therapeutics or effective treatment options for COVID-19," said Professor Luke Guddat from the University of Queensland in Australia.

"In order to rapidly discover lead compounds for clinical use, we initiated a programme of high-throughput drug screening, both in laboratories and also using the latest computer software to predict how different drugs bind to the virus," Guddat said.

The project targeted the main COVID-19 virus enzyme, known as the main protease or Mpro, which plays a pivotal role in mediating viral replication, the researchers said.

This makes it an attractive drug target for this virus, and as people don't naturally have this enzyme, compounds that target it are likely to have low toxicity, they said.

"We add the drugs directly to the enzyme or to cell cultures growing the virus and assess how much of each compound is required to stop the enzyme from working or to kill the virus. If the amount is small, then we have a promising compound for further studies," said Guddat.

After assaying thousands of drugs, researchers found of the six that appear to be effective in inhibiting the enzyme, one is of particular interest.

"We're particularly looking at several leads that have been subjected to clinical trials including for the prevention and treatment of various disorders such as cardiovascular diseases, arthritis, stroke, atherosclerosis and cancer," Guddat said.

Researchers said compounds that are already along the pipeline to drug discovery are preferred, as they can be further tested as antivirals at an accelerated rate compared to new drug leads that would have to go through this process from scratch.

"With continued and up-scaled efforts we are optimistic that new candidates can enter the COVID-19 drug discovery pipeline in the near future," Guddat said.

The new visa regulations requiring international students in the US with an F-1 visa to take at least one in-person course or face the prospect of deportation is likely to "cause uncertainties and difficulties" for some students, the Indian Embassy has said.

"These new modifications at a time when many of the US universities and colleges are yet to announce their plans for the new academic year are likely to cause uncertainties and difficulties for some Indian students wishing to pursue their studies in the US," said a spokesperson of the Indian Embassy.

Responding to media queries, the spokesperson said the Indian government has taken up the matter with concerned US officials.

At the India US Foreign Office Consultations held on July 7, Foreign Secretary Harsh Vardhan Shringla conveyed India's concerns on the matter to Under Secretary of State for Political Affairs David Hale.

According to a recent report of Student and Exchange Visitor Program (SEVP), there were 1,94,556 Indian students enrolled in various academic institutions of the US in January this year. Of these 1,26,132 were males and 68,405 were females.

Noting that partnership in higher education is a key component of the strong people-to-people ties between India and the US, the spokesperson said in the last two decades Indian students in American universities and colleges have been the harbingers of a strong partnership between technology and innovation sectors between the two countries.

The spokesperson hoped that the US authorities would provide adequate flexibility in their visa rule, keeping in mind the extraordinary circumstances created by the COVID-19 pandemic for the Indian students community.

We continue to engage all the stakeholders in the matters, including the US administration officials, Congressional leaders, universities and colleges as well as the Indian students community in the US as we move forward towards the 2020-21 academic year to further strengthen our bilateral partnership in higher education, the spokesperson said.

Announced by the SEVP on July 6, the new rules provide temporary exemptions for nonimmigrant students on F-1 and M-1 visas taking online classes due to the COVID-19 pandemic for the fall semester of the 2020 academic year.

While these modifications do provide some flexibility for US universities and colleges to adopt a hybrid model -- that is a mixture of online and in person classes -- they also restrict international students on F-1 and M-1 visas from taking courses entirely online, the spokesperson said.