Oct 1: The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that have yet to be certified by peer review.

Oct 3: Worldwide deaths related to COVID-19 surpassed 5 million on Friday, according to a Reuters tally, with unvaccinated people particularly exposed to the virulent Delta strain.

REUTERS, Oct 1: Worldwide deaths related to COVID-19 surpassed 5 million on Friday, according to a Reuters tally, with unvaccinated people particularly exposed to the virulent Delta strain.

KATHMANDU, Sept 28: A study carried out through gene sequencing of the novel coronavirus has confirmed the presence of the ‘Delta variant’ in Nepal. The genetic study conducted at the Central Department of Biotechnology and the National Public Health Laboratory has shown traces of the delta variant in 41 samples.

Sept 24: Is the delta variant of the coronavirus worse for kids?

LONDON, Aug 28: People who get the Delta variant of the coronavirus are twice as likely to be hospitalised as those who were infected by the Alpha variant which was first detected in England last year, a study showed on Friday.

As the delta variant of the coronavirus sweeps across the United States, a growing number of colleges and universities are requiring proof of COVID-19 vaccination for students to attend in-person classes. But the new mandate has opened the door for those opposed to getting the vaccine to cheat the system, according to interviews with students, education and law enforcement officials.

CHICAGO, August 8: The continued spread of the SARS-CoV-2 virus has spawned a Greek alphabet of variants - a naming system used by the World Health Organization to track concerning new mutations of the virus that causes COVID-19. Some have equipped the virus with better ways of infecting humans or evading vaccine protection.

LONDON, August 8: There are early signs that people who have been vaccinated against COVID-19 may be able to transmit the Delta variant of the virus as easily as those who have not, scientists at Public Health England (PHE) said on Friday.

August 5: Coronavirus cases worldwide surpassed 200 million on Wednesday, according to a Reuters tally, as the more-infectious Delta variant threatens areas with low vaccination rates and strains healthcare systems.

It’s the most contagious coronavirus mutant so far in the pandemic, but COVID-19 vaccines still provide strong protection against it. Nearly all hospitalizations and deaths are among the unvaccinated.

LOS ANGELES, August 3: With a new wave of COVID-19 infections fueled by the Delta variant striking countries worldwide, disease experts are scrambling to learn whether the latest version of coronavirus is making people - mainly the unvaccinated - sicker than before.

GENEVA, July 31: The world is at risk of losing hard-won gains in fighting COVID-19 as the highly transmissible Delta variant spreads, but WHO-approved vaccines remain effective, the World Health Organization said on Friday.

KATHMANDU, July 27: Nepal has reported new mutant of COVID-19 Delta variant.

July 16,: The Delta variant of COVID-19 is now the dominant strain worldwide, accompanied by a surge of deaths around the United States almost entirely among unvaccinated people, U.S. officials said on Friday.

POKHARA, July 11: Delta variant of COVID-19 has been found in Syangja and Gorkha districts, according to the Gandaki Provincial Health Directorate.

LISBON, July 3: Countries across Europe are scrambling to accelerate coronavirus vaccinations and outpace the spread of the more infectious delta variant, in a high-stakes race to prevent hospital wards from filling up again with patients fighting for their lives.

BEIJING, June 29: Many countries from China to Indonesia and Brazil rely heavily on Chinese vaccines to inoculate their people against COVID-19, but there are growing concerns about whether they provide enough protection against the Delta variant, first identified in India.

SYDNEY, June 24: Australia's most populous state, New South Wales (NSW), reported a double digit rise in new locally acquired cases of COVID-19 for the third straight day as officials fight to contain an outbreak of the highly contagious Delta variant.

“Mutation of the Delta variant might have been the reason behind the decline of COVID-19 cases of late.”