The overall global Covid-19 caseload has topped 147.5 million, while the deaths have surged to more than 3.11 million, according to the Johns Hopkins University.

In its latest update on Tuesday morning, the University's Center for Systems Science and Engineering (CSSE) revealed that the current global caseload and death toll stood at 147,533,386 and 3,116,582, respectively.

The US is the worst-hit country with the world's highest number of cases and deaths at 32,123,535 and 572,666, respectively, according to the CSSE. In terms of infections, India follows in the second place with 17,313,163 cases.

Maharashtra COVID deaths, cases

The other countries with more than two million confirmed coronavirus cases are Brazil (14,369,423), France (5,565,080), Russia (4,717,321), Turkey (4,667,281), the UK (4,422,562), Italy (3,971,114), Spain (3,488,469), Germany (3,312,653), Argentina (2,879,677), Colombia (2,787,303), Poland (2,762,323), Iran (2,417,230) and Mexico (2,328,391), the CSSE figures showed.

In terms of deaths, Brazil comes second with 391,936 fatalities.

Nations with a death toll of over 50,000 are Mexico (215,113), India (195,123), the UK (127,688), Italy (119,539), Russia (106,783), France (103,415), Germany (81,786), Spain (77,738), Colombia (71,799), Iran (70,070), Poland (65,437), Argentina (62,087), Peru (59,724) and South Africa (54,186).

WHO on India's Covid variant

Meanwhile, the World Health Organization (WHO) has warned against jumping to conclusions about a new coronavirus variant discovered in India, saying it had not yet classified it as worrying. A WHO spokeswoman said that it was not clear at this point to what extent the variant was responsible for the rapid increase in cases in India in recent months, DPA news agency reported.

There are many factors that could have contributed to this, she said. For example, festivals and other events with many participants may have accelerated infections. The British coronavirus variant may also be affecting India's epidemiological situation.

In India, more than 350,000 infections were reported within 24 hours on Monday, more than any country has reported in that timespan. With its 1.3 billion inhabitants, India has recorded a total of more than 17 million infections.

The British, South African and Brazilian variants of Covid-19 have all been classified by the WHO as "variants of concern." The newest variant was first detected in India on December 1, 2020.

Worrying variant in India

According to the WHO, a variant is considered worrying if it spreads more easily, causes more serious cases of the disease, bypasses the immune system or reduces the effectiveness of known treatments.

Overall, the number of reported infections per week has been increasing for nine weeks, while the number of reported deaths has been increasing for six weeks, WHO chief Tedros Adhanom Ghebreyesus said in Geneva on Monday.

"There were almost as many cases last week as in the first five months of the pandemic combined," said Tedros. In India in particular, the situation is "more than heartbreaking."

The WHO did not have the latest number of infections reported within a week on its website as of Tuesday. On April 19, it reported almost 5.7 million cases worldwide within a week, some 400,000 more than the week before.

On the Gisaid platform, which contains genetic sequences of influenza and the coronavirus, more than 850 sequences of Covid-19 from more than 18 countries had been uploaded by April 23. Most came from India, Britain, the US and Singapore.

However, this does not give an accurate picture of the distribution, as many countries sequence significantly less, others not at all due to a lack of capacity.