Kerala on Tuesday reported 30,203 fresh COVID-19 cases and 115 deaths which pushed the total infection count in the state to 40,57,233 and the fatalities to 20,788.
The test positivity rate (TPR), which had dipped to 16.74 percent on Monday, rose to 18.86 percent after testing of 1,60,152 samples in the last 24 hours, according to a state government release.
With that, 3,15,52,681 samples have been tested in the state till now, it said.
It also said that since Monday, 20,687 people have recovered from the infection taking the total recoveries to 38,17,004 and the number of active cases to 2,18,892. Among the 14 districts of the state, Malappuram recorded the highest with 3,576 cases followed by Ernakulam (3,548), Kollam (3,188), Kozhikode (3,066), Thrissur (2,806), Palakkad (2,672), Thiruvananthapuram (1,980), Kottayam (1,938), Kannur (1,927), Alappuzha (1,833), Pathanamthitta (1,251), Wayanad (1,044) and Idukki (906).
Of the new cases, 116 were health workers, 147 from outside the state and 28,419 infected through contact with the source of the contact not being clear in 1,521 cases, the release said.
Frequently Asked Questions
A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.
There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.
Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.
There are currently 5,45,393 people under surveillance in various districts. Of these, 5,13,686 are in home or institutional quarantine and 31,707 in hospitals.Follow our full coverage of the coronavirus pandemic here.