PFI leader among two arrested in RSS worker Sharath murder case

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.

Bengaluru, Apr 5: The COVID-19 related lockdown has substantially improved the air quality of Bengaluru, taking it from satisfactory level to good, a senior state pollution control board offcial said here on Sunday.

"During the course of the lockdown 19 problem, we reached good position from satisfactory.

It is between zero to 50 AQI (Air Quality Index) now. We have good quality air," the Karnataka State Pollution Control Board member secretary Basavaraj Patil told PTI.

He said the indicator for knowing the air quality in

"If the AQI is zero to 50 then it is good. If it is 50 to 100 then it is satisfactory. 101 to 150 is moderate and if it is 151 to 200, then it is poor, he explained.

Patil said as per available recrods, there has been a 60 to 65 per cent reduction in pollution during the lockdown.

The city railway station and Peenya industrial area, which used to be among the areas with highest AQI, has seen pollution levels come down significantly, he said.

Another major contributor of pollution was construction activities, which too had ground to a halt due to the lockdown, resulting in zero dust emission.

Patil opined that the improved air quality would boost the immune system of the people.

"It will improve the immune system of people, including those who have breathing problems like asthma," he said.

He asked the public to learn lessons from the lockdown and later switch to sustainable means of transport such as public transport, walking and cycling,.

"We can still reduce the pollution load even after the lockdown is over," Patil said.

Bhatkal, Mar 30: Uttara Kannada district administration has decided to shift all those Bhatkal residents who have returned from abroad after March 15 to quarantine facilities in Bhatkal town to avoid further family contacts, Deputy Commissioner of Uttara Kannada K Harish Kumar said on Monday.

“All primary contacts identified are already in government quarantine facilities,” he said in a communique.

All people must cooperate to maintain social distancing to avoid further spread of COVID-19, he added.