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Jun 13: Requiring the wearing of masks to prevent the spread of the novel coronavirus in areas at the epicenter of the global pandemic may have prevented tens of thousands of infections, a new study suggests.

Mask-wearing is even more important for preventing the virus' spread and the sometimes deadly COVID-19 illness it causes than social distancing and stay-at-home orders, researchers said, in the study published in PNAS: The Proceedings of the National Academy of Sciences of the USA.

Infection trends shifted dramatically when mask-wearing rules were implemented on April 6 in northern Italy and April 17 in New York City - at the time among the hardest hit areas of the world by the health crisis - the study found.

"This protective measure alone significantly reduced the number of infections, that is, by over 78,000 in Italy from April 6 to May 9 and over 66,000 in New York City from April 17 to May 9," researchers calculated.

When mask-wearing went into effect in New York, the daily new infection rate fell by about 3% per day, researchers said. In the rest of the country, daily new infections continued to increase.

Direct contact precautions - social distancing, quarantine and isolation, and hand sanitizing - were all in place before mask-wearing rules went into effect in Italy and New York City. But they only help minimize virus transmission by direct contact, while face covering helps prevent airborne transmission, the researchers say.

"The unique function of face covering to block atomization and inhalation of virus-bearing aerosols accounts for the significantly reduced infections," they said. That would indicate "that airborne transmission of COVID-19 represents the dominant route for infection."

The U.S. Center for Disease Control and Prevention on Friday urged organizers of large gatherings that involve "shouting, chanting or singing to strongly encourage the use of cloth face coverings to lower the risk of spreading the coronavirus."

Chennai, Mar 25: Tamil Nadu reported its first Covid-19 death at the Rajaji Government Hospital in Madurai this morning. The 54-year-old man from Madurai had no history of travel to any coronavirus-affected state or country.

However, he did have contact with two Thai nationals who had tested positive for Covid-19 and are undergoing treatment in isolation in Erode.

"Despite our best efforts, the #COVID-19 +ve Pt at MDU, #RajajiHospital, passed away few minutes back. He had medical history of prolonged illness with steroid-dependent COPD, uncontrolled Diabetes with Hypertension,” Tamil Nadu health minister C. Vijayabaskar tweeted.

The patient tested positive for the coronavirus on March 23. Yesterday the minister had disclosed that the patient had not responded well to treatment due to his medical condition. “He has a medical history of prolonged illness with steroid dependent COPD, uncontrolled diabetes with hypertension,” he said.

As of Wednesday morning, the total number of Covid-19 infected patients in Tamil Nadu was 18, including one patient who has recovered.

The latest patients include a 65-year-old man who returned from New Zealand and is currently in isolation at a private hospital, a 55-year-old woman from Saidapet who is currently in quarantine Kilpauk Medical College Hospital, and a 25-year-old who returned from London and is undergoing treatment at the Rajiv Gandhi Government General Hospital.

Kozhikode, Apr 24: A four-month-old baby girl, who had tested positive for COVID-19 and suffering from congenital heart disease, died in a hospital here in Kerala early Friday after suffering a cardiac arrest, officials said.

This is the third COVID-19 death and the first infant fatality in the state where two elderly people had succumbed to the disease earlier.

The baby was admitted to the Medical College Hospital here on April 21 with history of fever, cough, breathing difficulties and seizure after being treated at two other hospitals and the end came at 6 am, a medical bulletin said.

State Health Minister K K Shailaja said doctors had made maximum efforts to save the life of the child, whose family belonged to Payyanad near Manjeri in Malappuram district.

"Preliminary information which we have is that there has been some primary contact", she told reporters in Thiruvananthapuram.

The protocol for COVID-19 cases would be followed for the baby's last rites, the Minister added.

As of Thursday, the total active COVID-19 cases in the state stood at 129.

The bulletin said on arrival at the hospital on Tuesday the baby was in shock and had respiratory failure.

"She was resuscitated, mechanically ventilated and appropriate antibiotics for pneumonia and supportive measures to correct shock were started", it said adding the baby, however, continued to remain sick.

"Even though there was no history of any high or low risk contact or any epidemiological links as the child comes from SARI (Sever Acute Respiratory infection) criteria, she was admitted to the COVID-ICU and swab was taken and she tested positive", the bulletin said.

Contact tracing of those who had come in contact with the child was in progress.

Mallapuram District Medical Officer (Health) Dr Sakeena K said the child was having severe health issues from its birth itself and was admitted to a private hospital in Manjeri near here with breathing problem.

As her condition worsened, the baby was shifted to another hospital and later to the medical college hospital.

"The baby was having chest deformity and Atrial Septal Defect by birth which developed into severe health issues, the official added.