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Alappuzha, Jan 9: The houseboat of Nobel Laureate Michael Levitt was blocked in the backwaters here for some time by trade union activists, who were on a nationwide strike against the Centre's "anti-labour" policies on Wednesday.

Michael Levitt, an American-British-Israeli biophysicist and a professor of structural biology at the Stanford University in the United States, said the incident sent a bad message to tourists.

Levitt, who was in Kerala as a state guest, also said he felt as if a bandit had stopped his wife and him at gunpoint. Police said Levitt, who received the 2013 Nobel Prize in Chemistry, was in Alappuzha with his wife and they were stopped by the protesters near Kainakary.

"Being stopped by criminals on the backwaters sends a very bad message to tourists. It is as if a bandit stopped us at gunpoint and delayed us under the threat of force for one hour," Levitt wrote in an email to his tour agent at Kottayam.

In the email, which was later released to the media, he also said the person who blocked them "ignored all arguments that tourists were exempted" from the strike.

"This person, who did this, ignored all arguments that tourists were exempted and that I am a VIP guest of the Kerala government. He was obviously acting, knowing that he was safe from prosecution. Sadly, this makes me fear that India is sinking into lawlessness," Levitt wrote in the email.

The police registered a case after the houseboat owners filed a complaint in this regard.

Reacting to the incident, state Tourism Minister Kadakampally Surendran said the government would take strong action. "Strong action will be taken against those anti-social elements who stopped the boat. Levitt was here as a guest of the state government. The government had made it clear that the tourism industry was exempted from the strike," he said.

Trade union leaders had also announced that the strike would not affect the tourism industry.

Ten trade unions, including the INTUC, the AITUC and the CITU, had called for the nationwide strike to protest against the labour reforms, FDI, disinvestment, corporatisation and privatisation policies of the Centre and press for a 12-point demands of the working class, relating to minimum wage, among others.

Bengaluru, May 21: Karnataka reported 116 fresh cases of coronavirus on Thursday, taking the state tally to 1578. 

So far, 570 people have been cured and discharged while 41 have succumbed to the virus, informed the state health department.

Out of the 116 cases, 71 have a history of inter-state travel history to Maharashtra.

Out of the 116 cases, 27 are from Udupi alone, 15 cases are reported from Mandya and 13 are from Hassan. Bengaluru Urban saw seven new cases.

Feb 22: A 20-year-old Chinese woman from Wuhan, the epicentre of the coronavirus outbreak, travelled 400 miles(675 km) north to Anyang where she infected five relatives, without ever showing signs of infection, Chinese scientists reported on Friday, offering new evidence that the virus can be spread asymptomatically.

The case study, published in the Journal of the American Medical Association, offered clues about how the coronavirus is spreading, and suggested why it may be difficult to stop.

"Scientists have been asking if you can have this infection and not be ill? The answer is apparently, yes," said Dr. William Schaffner, an infectious disease expert at Vanderbilt University Medical Center, who was not involved in the study.

China has reported a total of 75,567 cases of the virus known as COVID-19 to the World Health Organization (WHO) including 2,239 deaths, and the virus has already spread to 26 countries and territories outside of mainland China.

Researchers have reported sporadic accounts of individuals without any symptoms spreading the virus. What's different in this study is that it offers a natural lab experiment of sorts, Schaffner said.

"You had this patient from Wuhan where the virus is, travelling to where the virus wasn't. She remained asymptomatic and infected a bunch of family members and you had a group of physicians who immediately seized on the moment and tested everyone."

According to the report by Dr Meiyun Wang of the People's Hospital of Zhengzhou University and colleagues, the woman travelled from Wuhan to Anyang on Jan. 10 and visited several relatives. When they started getting sick, doctors isolated the woman and tested her for coronavirus. Initially, the young woman tested negative for the virus, but a follow-up test was positive.

All five of her relatives developed COVID-19 pneumonia, but as of Feb. 11, the young woman still had not developed any symptoms, her chest CT remained normal and she had no fever, stomach or respiratory symptoms, such as cough or sore throat.

Scientists in the study said if the findings are replicated, "the prevention of COVID-19 infection could prove challenging."

Key questions now, Schaffner said, are how often does this kind of transmission occur and when during the asymptomatic period does a person test positive for the virus.