Pfizer's vaccine efficacy drops by 6% every two months, according to the study, which involved more than 44,000 people across the United States and other countries.

From grey to green: world cities uprooting the urban jungle

The state health department has logged 16 deaths associated with the outbreak.

UNESCO awards Gabon's Ivindo park World Heritage status

Mayor Bill de Blasio has a plan to get more people to get vaccinated in the city.

Extreme heatwaves in the Pacific Northwest are not only affecting people, but are also having a toll on already endangered fish.

Many pet parents see training their pets as a one-and-done experience, not realizing that training is part of the journey you take with your pet throughout their whole lives.

This year's theme is "Hepatitis Can't Wait."

Amid a surge in cases and growing concern over the Delta variant, experts now advise the public to resume wearing face masks indoors whether they are fully vaccinated or not.

Chocolate is said to improve brain function and lower the risk of developing heart disease, among many other benefits.

Blinken in veiled warning on rights, democracy in India

In Spain, Iberian lynx claws back from brink of extinction

Environmentalists slam All Blacks tie-up with petrochemical firm

Pedro Castillo, Peru's 'first poor president'

US firefighters admit they are burnt out by endless blazes

Albert Bourla, Pfizer's chief executive officer, was given a bigger salary in 2020 following the authorization of the pharmaceutical company's coronavirus vaccine, compared to 2019.

"Paranoia is, by definition, a social concern," the researchers noted.

Dangerous attraction: Amorous pursuit imperils Cuban croc

Earth's 'vital signs' worsening as humanity's impact deepens

US curbs work with Guatemala after prosecutor flees