Negotiations on boosting the World Health Organization’s budget to help it prepare for future pandemics made mixed progress last week, with Washington withdrawing criticism but other donors voicing opposition, sources involved in the talks told Reuters.

Novavax Inc. filed for emergency use authorization of the company’s COVID-19 vaccine for U.S. adults, a long-awaited step following months of struggles with development and manufacturing problems.

New cases of COVID-19 in the Americas in the past week were the highest since the pandemic began and the very contagious Omicron variant has clearly become the predominant strain, the Pan American Health Organization said on January 26.

The U.S. Department of Homeland Security (DHS) announced it is requiring that non-U.S. essential workers such as truck drivers and nurses who are crossing land borders be fully vaccinated against COVID-19, effective January 22.

The number of new Covid-19 infections dropped during the past month throughout the Americas, even though only 37 percent of the people in Latin America and the Caribbean are fully vaccinated, the Pan American Health Organization (PAHO) said on Oct. 6.

Researchers at the National Autonomous University of Mexico (UNAM) created a facemask using silver and copper nanolayers that neutralizes SARS-CoV-2, the virus that causes Covid-19, the university’s official gazette said on Aug. 26.

A study in Science shed new light on the global epidemic obesity by evaluating nearly 650,000 exomes from the United Kingdom, United States and Mexico and identifying those with strong implications for body mass or obesity.

While the United States, Canada and Mexico are reporting overall reductions in Covid-19 cases and deaths, new infections are increasing in the rest of the Americas, Pan American Health Organization (PAHO) Director Carissa Etienne said.

Covid-19 has caused 6.9 million deaths globally, more than double what official numbers show, according to an analysis by the Institute for Health Metrics and Evaluation (IHME) at the University of Washington School of Medicine. IHME found that Covid-19 deaths are significantly underreported in almost every country.

Novavax Inc. said on April 5 participants in the company’s Covid-19 vaccine trials in South Africa and the UK can receive additional shots, ensuring those who received a placebo can also get the active vaccine.