Here's your 10-point cheatsheet to this big story:
The five states that reported the highest number of COVID-19 cases in the last 24 hours are: Maharashtra (10,576), Andhra Pradesh (6,045), Tamil Nadu (5,849), Karnataka (4,764) and Uttar Pradesh (2,300).
The five states that reported the highest deaths in the last 24 hours are: Tamil Nadu (518), Maharashtra (280), Andhra Pradesh (65), Karnataka (55) and West Bengal (39).
Several states have declared full lockdown in their cities as coronavirus cases continue to rise. India has the highest number of coronavirus cases after the US and Brazil.
The first of West Bengal's twice-weekly 24-hour lock down begins today, a day after the state logged the highest number of new cases at 2,291 and the highest number of deaths at 39 in a span of 24 hours.
Delhi has decided to conduct sero-surveys every month to make better policies for tackling COVID-19, state Health Minister Satyendar Jain said on Wednesday. The decision comes after the state government analysed the results of the latest sero-survey, which showed that 23 per cent of people in Delhi have been exposed to coronavirus.
Human trials of the indigenously developed coronavirus vaccine, COVAXIN, began on July 20, AIIMS-Delhi Director Dr Randeep Guleria said, adding that it would take at least three months for researchers to arrive at the first set of data.
Researchers are making "good progress" in developing vaccines against COVID-19, with a handful in late-stage trials, but their first use cannot be expected until early 2021, Mike Ryan, head of World Health Organisation's (WHO) emergencies programme, said on Wednesday. "Realistically it is going to be the first part of next year before we start seeing people getting vaccinated," he told a public event on social media.
Tamil Nadu, Delhi and other states have started plasma banks. Plasma donation has been encouraged as experimental treatment for COVID-19 patients. The antibody-rich plasma of a person who has recovered from COVID-19 could help an infected person fight off the virus, research has shown.
At least 15,007,291 cases of the coronavirus, including 617,603 deaths, have been detected worldwide since the pandemic emerged late last year, news agency AFP reported. Africa, where an acceleration in cases is concerning the WHO, has passed the 15,000-death mark.
The US government has agreed to pay $1.95 billion to secure 100 million doses of a potential coronavirus vaccine being developed by US pharma giant Pfizer and Germany's Biontech.