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Mangaluru, Jul 23: Dakshina Kannada recorded seven more deaths related to covid-19 even as the district saw a spike of 218 new coronavirus positive cases in past 24 hours. With this the total number of covid related deaths in the district mounted to 99. 

Among the seven fatalities, the first one is a 36-year-old man hailing from Davanagere. He was admitted to a private hospital on July 16, and breathed his last yesterday.He was suffering from sepsis septic shock, acute liver injury, and acute kidney injury, acute chronic pancreatitis, ARDS, and spontaneous bacterial peritonitis. 

The second victim is a 69-year-old man from Bhatkal, who was admitted to a private hospital on July 7, and passed away July 22. He suffered from heart disease, cancer, renal failure and pulmonary thromboembolism. 

The third one is a 52-year-old man from Palakkad, Kerala. He was admitted to a Wenlock hospital on July 19, and passed away on July 22. He suffered from diabetes, ARDS and respiratory issues. 

The fourth one is an 83-year-old man from Mangaluru. He was admitted to a Wenlock hospital on June 13, and passed away on July 22. He suffered from blood pressure, heart disease and pneumonia. 

The fifth one is a 73-year-old man from Mangaluru, who was admitted to a private hospital on July 21, and passed away on July 22. He was suffering from diabetes mellitus, hypertension, old cerebrovascular accident, hyponatraemia and acute on chronic kidney disease. 

The sixth one a 58-year-old woman from Mangaluru. She was admitted to a private hospital on July 11 and passed away on July 22. She was suffering from type 2 diabetes mellitus and hypertension. 

The seventh is a 52-year-old male from Bantwal. He was admitted to private hospital on July 21 and passed away on July 22. He was suffering from heart disease.

As per the district health bulletin, a total of 31,068 samples have been tested so far. 26,854 have turned out negative, and 4,214 are positive till date. Out of these, 2,253 cases are currently active. 1,862 persons have recovered and been discharged. Among the deceased, 12 are from other districts.

As many as 118 patients were discharged on Thursday from Wenlock as well as private hospitals. Of the 218 who tested positive on Thursday, 36 are primary contacts, 110 have ILI symptoms, 16 have SARI symptoms, and contacts of 57 are being traced.

Madikeri, Feb 23: Back-to-back floods and landslides in the last two years, has led to a fall in the number of tourists coming to the coffee-growing region of Kodagu, forcing the district administration to intervene and take confidence-building measures, telling tourists that Kodagu was safe to visit.

According to the statistics of the Karnataka State Tourism Department, Kodagu recorded a moderately good number of tourists in 2018 and 2019, the years that the district witnessed devastating floods and landslides.

The Department’s statistics reveal that 17 lakh tourists visited Kodagu in 2018 and 18 lakh in 2019. This means the flood-ravaged years did attract tourists contrary to what the stakeholders had claimed.

The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.

Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.

According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.

 She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.

However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.

Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.

"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.

"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.

The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.

"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study