U.S. Centers for Disease Control and Prevention

One person has died and dozens have fallen sick following a severe E. coli outbreak linked to McDonald's Quarter Pounder hamburgers, the U.S. Centers for Disease Control and Prevention (CDC) has said.

The outbreak, which began in late September, has spread across 10 western states with most of the 49 cases concentrated in Colorado and Nebraska, the health agency said.

Although the World Health Organization (WHO) recently declared mpox a global health emergency, mpox is highly unlikely to lead to school closures, according to physicians and public health experts in the U.S., local media reported.

Just a few days ago, the U.S. Food and Drug Administration (FDA) approved the first at-home self-test for syphilis, designed to detect Treponema pallidum (syphilis) antibodies in human blood. However, experts emphasize that results from this type of test alone are not sufficient for diagnosing syphilis and should be followed by additional tests to confirm the diagnosis.

The Kremlin on Thursday rejected allegations by the United States that Russian forces had used a "chemical weapon" in Ukraine and blasted new sanctions targeting Moscow's key trading partners.

The U.S. State Department said Wednesday that Russia used "the chemical weapon chloropicrin" against Ukrainian forces.

U.S. authorities are investigating Meta over its role in the illicit sale of medications, The Wall Street Journal reported on March 16.

Turkey has no monkeypox virus cases as the latest tests on four suspected patients have emerged negative, the country's health minister has said.

"Tests have been made on four patients suspected to be infected with monkeypox in Istanbul. All are negative," Fahrettin Koca tweeted late on June 4.

As of Saturday, the United States had administered 412,856,169 doses of COVID-19 vaccines and sent 503,521,625 doses to vaccination centers, the U.S. Centers for Disease Control and Prevention said.

It depends, mostly on whether or not you're vaccinated.

If you're fully vaccinated, the latest guidance from the U.S. Centers for Disease Control and Prevention says you no longer need to wear a mask or physically distance in most situations. That includes when you're outside and in many indoor spaces like restaurants, though you still need to follow any local or business rules.

 A new, highly transmissible variant of the coronavirus first discovered in Britain could become the dominant variant in the United States by March, the U.S. Centers for Disease Control and Prevention warned on Friday.

The United States logged a second consecutive day of fewer than 900 coronavirus deaths, as the World Health Organization hailed global progress but warned of the need for "extreme vigilance" against a second wave.