According to the World Health Organisation (WHO), Covid symptoms take around five to six days to appear after infection
The test, described in the journal ACS Nano, could allow rapid screening of people attending large gatherings, such as conferences and weddings
India has so far administered 1,678,793,137 vaccine doses. That is 4015.93 per cent of its total caseload, and 119.82 per cent of its population
The daily positivity rate was recorded at 10.99 per cent
The state has 3,781 active cases
The Covid-19 recovery rate in the state marginally improved to 95.76 per cent from 95.55 per cent the previous day
Meanwhile, the Union Ministry of Health and Family Welfare has written to state governments, including Uttar Pradesh, to ramp up the second dose coverage of adolescent and young persons.
The mortality rate is 1.67 per cent
The US continues to be the worst-hit country
Foreign vaccinated backpackers and some skilled workers will be allowed into the country beginning March 13.
Increasingly, the border controls have been viewed as out-of-step in a world where the virus is becoming endemic
ZyCoV-D is a three-dose vaccine administered intradermally
The Kremlin continues to hold off from imposing nationwide restrictions even as the state coronavirus task force reported 141,883 news infections on Wednesday
Seventeen more Covid-related deaths were reported in Haryana on Wednesday, taking the death toll to 10,337
Kerala continued to report more than 50,000 daily COVID-19 cases with the state recording 52,199 fresh infections on Wednesday raising the caseload to 61,29,755.
Of the new local cases, 15 were reported in the province of Zhejiang, 12 in Tianjin, six in Guangdong, two in Beijing, and one in Hebei
India has so far administered 1,672,942,707 vaccine doses. That is 4018.51 per cent of its total caseload, and 119.4 per cent of its population
Schools, colleges and universities were allowed to reopen from Tuesday
The daily positivity rate was recorded at 9.26 per cent
The mortality rate is 1.67 per cent