India reported 17,073 fresh Covid-19 cases and 21 deaths in the 24 hours ending at 8 am on Monday. The new cases marked a sharp increase from the previous day’s over 11,000 new cases, data released by the Ministry of Health showed. The active cases in the country stood at 94,420. The positivity rate stood at 5.62 per cent.
In the last 24 hours, a total of five patients infected with Covid-19 in Mumbai lost their lives. This is the highest single-day deaths reported since February 7, when the city witnessed five deaths out of 356 registered cases. Of the five deceased, four were above the age of 70 years with comorbidities.
A retrospective study on the association of underlying co-morbidities with Covid progression and mortality in a Delhi hospital found that in the first phase of the outbreak, younger patients with co-morbidities were at a higher risk of mortality.
The BA.5 sub-variant of Omicron has been found in some samples collected from central, south and southeast Delhi between May and June 16, official sources said on Monday.
The findings were discussed at a meeting on June 17 by the Indian SARS-CoV-2 Genomics Consortium (INSACOG), which reviewed the COVID-19 data to check the possibility of any new emerging variant or sub-variant and ascertain the reasons behind the breakthrough infections.
Almost five per cent of the samples genome sequenced from central and south east Delhi tested positive for the BA.5 sub-variant and nearly two per cent samples from south Delhi showed its presence. Most of the samples were found to have the BA.2 sub-variant of Omicron. According to experts, BA.5 is highly transmissible but does not lead to severe infection.
Sources said a few samples from Delhi that were sent to the National Centre for Disease Control (NCDC) for genome sequencing tested positive for the BA.4 and BA.5 sub-strains of Omicron, which had triggered the surge in the number of cases in January.
The Department of Biotechnology (DBT) is studying long-term memory of COVID-19 vaccines, a senior official said on Monday. The study is aimed at ascertaining the long-tern impact of the vaccines and will help modulate the schedule of doses, the official said.
“Earlier, the vaccines which were used were tried and studied for a longer period of time,” the official said. A senior scientist said Covid vaccine data is being collected from several laboratories and studied by the DBT. A total of 197 crore COVID-19 vaccine doses have been administered in the country so far.
Covid-19 positive outpatients are at a far increased risk of neurodegenerative disorders compared with those who tested negative for the SARS-CoV-2 virus, according to a study.
The researchers found that those who had tested positive for Covid-19 were at a much higher risk of Alzheimer’s disease, Parkinson’s disease, and ischaemic stroke.
The study, presented on Sunday at the 8th European Academy of Neurology (EAN) Congress in Vienna, Austria, analysed the health records of over half of the Danish population.
Out of 919,731 individuals that were tested for Covid-19 within the study, researchers found that the 43,375 people who tested positive had a 3.5 times increased risk of being diagnosed with Alzheimer’s disease.