The Huanan market in central China's Wuhan city was the epicentre of the pandemic. From its origin there, the SARS-CoV-2 virus rapidly spread to other locations in Wuhan in late 2019 and then to the rest of the world.
COVID-19 origins: Research into the root cause of coronavirus outbreak was important as it could have helped scientists prepare better to tackle any such future outbreaks.
COVID-19 was known to affect respiratory, gastrointestinal, cardiovascular and other systems, but there were very few studies describing liver involvement and liver function test (LFT) abnormalities, he said.
The Drug Controller General of India (DCGI) on January 16 approved market authorisation to Covovax as a heterologous booster dose for adults who have been administered two doses of Covishield or Covaxin.
COVID-19 vaccine: iNCOVACC, the world's first intranasal COVID-19 vaccine, was launched on January 26 (Thursday). The vaccine is now available on CoWIN and priced at Rs 800 for private markets and Rs 325 for the government of India and state governments.
COVID19: The biosensors would be a one-step identification or sensing technique.
As children haven't been exposed to many viruses, their immune system is still 'naive'. And because they don't develop memory T cells, they are at risk of getting sick when they become reinfected
Several people who had new or existing heart disease and stroke symptoms were reluctant to seek medical care, particularly in the early days of the COVID pandemic.
Covid19 in China: China revealed that the country had recorded close to 60,000 Covid-related deaths in early and mid-December, 2022.
By analysing samples from COVID-19 convalescent individuals, the researchers found that some had antibodies specific for the coldspots, the study said.
Oxygen, nutrients and metabolic products are exchanged between mother and child in the placenta. Attached to the uterine wall, this organ forms such a strong barrier against the coronavirus that only 3 per cent or fewer of foetuses whose mothers test positive for SARS-CoV-2 are also infected.
According to Dr Raman Gangakhedkar, former head of epidemiology and communicable diseases at the Indian Council of Medical Research 'there is still time to think.'
COVID: Against reinfection, the effectiveness of hybrid immunity following primary series vaccination waned to 41.8 per cent at 12 months, while the effectiveness of hybrid immunity following first booster vaccination waned to 46.5 per cent at 6 months, the study said.
Our knowledge of the immune response to COVID is rapidly expanding. The most consistent findings show how well vaccines are protecting us from the very worst effects of SARS-CoV-2 and that, post-vaccination, our immune system is working exactly as it should.
Citing an RTI response, a recent news report had claimed that ICMR and CDSCO officials have admitted to side-effects of COVID-19 vaccines, citing a plethora of ramifications arising out of them.
China's abrupt pivot from Covid Zero in early December (2022) unleashed a surge of omicron infections and led to 59,938 virus-related deaths in the nation's hospitals through January 12, Bloomberg news agency reported, citing the figures disclosed by the National Health Commission.
The national capital has battled three Covid waves so far, with the Delta variant-driven second wave in April-May 2021 being the deadliest.
Flu, RSV, SARS-CoV-2 and "common cold" coronaviruses share several characteristics that enable them to cause repeated re-infections, including very short incubation periods, rapid host-to-host transmission and replication in the nasal mucosa rather than throughout the body.
China COVID-19 UPDATE: The government said 5,503 people died of respiratory failure caused by COVID-19 and there were 54,435 fatalities from cancer, heart disease and other ailments combined with COVID-19 between December 8 and January 12.
COVID: Patients who suffered progressive lung failure and died had more of a group of bacteria called proteobacteria than patients who recovered. These patients also had lower levels of secondary bile acids, and less of a metabolite called "desaminotyrosine".
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