The research, published in the Journal of Internal Medicine on Tuesday, describes how different sized respiratory droplets emitted while speaking have a range of sizes, and can carry different amounts of virus.
A case of COVID-19 sub-variant JN. 1 has been detected in Kerala as part of an ongoing routine surveillance activity of the Indian SARS-CoV-2 Genomics Consortium (INSACOG), a senior official from the Indian Council of Medical research (ICMR) said on Saturday.
In a letter to all states and Union territories, the ministry highlighted that under the emergency use authorisation, coronavirus vaccination is indicated only for 18 years and above. If required, COVID-19 vaccine and other vaccines should be separated by an interval of at least 14 days.
India has covered enough population with vaccine and infection, but protein vaccines should remain available on payment basis for elderly and those with comorbidities.
All travellers and contacts have been tested and quarantined.
These seven countries are South Africa, Bangladesh, Botswana, China, Mauritius, New Zealand and Zimbabwe.
The new test it will enable rapid testing amongst more people easily.
To reduce the risk of transmitting the SARS-CoV-2 virus to newborns after delivery, the researchers said the hospital staff practised social distancing, wore masks, and placed COVID-positive moms in private rooms.
AstraZeneca and the University of Oxford, as the trial sponsor, said that they cannot disclose further medical information but confirmed that independent investigations concluded that the trials were safe to restart.
Seropositivity was the highest in the age group of 18-45 years (43.3 per cent), followed by those between 46-60 years (39.5 per cent) and it was the lowest among those aged above 60 (17.2 per cent).
According to the zoo, two of the gorillas had started coughing on Wednesday, following which San Diego Zoo Global initiated the process of testing fecal samples from them for SARS-CoV-2 through the California Animal Health and Food Safety Laboratory System.
The test kit has the advantage of testing 90 samples together in a single run of 2.5 hours, so that healthcare professionals can proceed quickly with necessary next steps.
The new and highly transmissible Omicron variant of the deadly coronavirus has increased immune escape compared with the Delta variant and appears likely to become the dominant SARS-CoV-2 strain globally in 2022, according to Singapore-based experts.
Raches Ella, project lead, Covid-19 vaccines at Bharat Biotech said in a series of tweets that he was 'surprised' that media and researchers were drawing conclusions based on non-peer reviewed work.
Of the fresh cases, nine were caused by JN.1, increasing the number of infections tied to the new sub-variant in the state to 10, it said.
While virologists say theoretically the vaccine that works on Delta should work on the Delta Plus variant as well, more research is needed.
Rediff.com Contributing Photographer Pradeep Bandekar sighted these stars on Tuesday.
The company claims that when the Nitric Oxide Nasal is sprayed over nasal mucosa it acts as a physical and chemical barrier against the virus.
According to some experts, there is not much difference in the number of seasonal flu cases and that of COVID-19, even though they stressed that surveillance for newer variants should continue in the off chance of a new lineage of coronavirus catching the country off guard.
Those who have recovered from COVID-19 respond faster to the Covishield vaccine and reach high antibody levels, says a study, leading to hopes that they may not need a second dose and therefore help widen India's corona immunisation cover.
'The most intriguing thing (about COVID-19) is the range of the illness -- from asymptomatic or less symptoms to death and quite severe manifestations.' 'The vaccine will be at least another year away from having any effect.'
'The COVID-19 virus has the power to quietly enter your body, without causing pain via symptoms, because it craftily manipulates your pain response.'
The research, published in the journal JAMA Pediatrics, is the first large-scale study to compare the health outcomes of coronavirus infection from Omicron and Delta in the age group which is not yet vaccinated.
The ICMR has validated 'TruenatTM beta CoV test on TruelabTM workstation' and has recommended it as a screening test,the apex health research body said on Friday.
These 25 people include the 20 who were found positive with the mutated strain on Tuesday and Wednesday.
As worries over India's COVID-19 spike mount -- the country added 75,809 cases on Tuesday to take its tally to 42,80,422 -- scientists are grappling with the pivotal issue of antibodies and trying to understand how they impact on the progression of the disease.
Nine cases have been detected from Maharashtra, eight from Karnataka, six from Kerala, four from Tamil Nadu and two from Telangana, they added.
The coronavirus variant B.1.617 first identified in India last year has been classified as a "variant of global concern", with some preliminary studies showing that it spreads more easily, a senior WHO official had said on Monday.
Results of an interim study recently published in The Lancet showed that two doses of Covaxin, also known as BBV152, had 77.8 per cent efficacy against symptomatic disease and present no serious safety concerns.
The durability of immunity post COVID-19 vaccination persists for nine months or more and a precautionary dose of vaccine which will be administered to healthcare and frontline workers and citizens above 60 years with comorbidities is to mitigate the severity of infection, hospitalisation and death, the government said on Thursday.
Delhi Capitals have brought in Shams Mulani as a short-term COVID-19 replacement for Axar Patel for their IPL-2021 campaign.
"The COVID-19 cases are rising, but hospitalization and deaths are still less," said sources.
The new lineage called B.1.618 is distinct from the B.1.617, also known as the 'double mutant' virus that contains two mutations, E484Q and L245R, and is believed to be behind the powerful second COVID-19 wave sweeping through India.
The international team of researchers combined lab-based experiments and epidemiology of vaccine breakthrough infections, showing that the Delta variant is better at replicating and spreading than other commonly-observed variants.
A total of 263 cases of COVID-19 sub-variant JN.1 have been detected in the country so far, with about half of them recorded in Kerala, according to the Indian SARS-CoV-2 Genomics Consortium (INSACOG)'s data updated on Tuesday.
ZyCoV-D is a three-dose vaccine administered intradermally.
Two Covid-19 related deaths and 20 fresh cases were reported in Karnataka, according to a Health bulletin issued on Wednesday.
A set of seven symptoms, considered together, can be used to maximise detection of COVID-19 in the community, according to a study.
Safety and Efficacy results from the final analysis will be available in June, and the final report will be submitted to a peer-reviewed publication.
Adjuvants may be added to a vaccine to produce more antibodies and longer lasting immunity thus minimising the dose of antigen needed.
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