The world has not made significant progress in developing new antibiotics to fight drug-resistant infections, the World Health Organization said in a new report.

The seven-day average number of COVID-19 vaccines administered daily was 3.3 million as of April 15, a 10.3 percent increase from the previous week's average, according to the CDC's COVID Data Tracker Weekly Review published April 16. 

Early research estimates have shown anywhere between 10 percent to 30 percent of people with COVID-19 go on to become long-haulers, or those who experience persistent symptoms weeks or months after the infection has cleared. With more than 31.2 million COVID-19 cases reported in the U.S., and with the pandemic still raging, the number of people who are or will experience long-term effects presents health systems a profound challenge. 

All states reported minimal flu activity for the 11th consecutive week, excluding Washington, D.C., which reported insufficient data, according to the CDC's FluView report for the week ending April 10.

The CDC is urging public health powers to improve HIV prevention and treatment for transgender women, according to a National HIV Behavioral Surveillance report published in April. 

Millions of Americans have immune systems weakened by certain diseases, cancer therapies and other factors, leaving them unable to produce an adequate level of COVID-19 antibodies after a prior infection or after vaccination, The New York Times reported April 15. 

The White House is allocating $1.7 billion from the American Rescue Plan to improve the detection, surveillance and mitigation of coronavirus variants, President Joe Biden said April 16. 

The Colorado Department of Health and Environment is advising individuals who received vaccines at Colorado Springs-based Dr. Moma Health and Wellness Clinic to consider the vaccination invalid, according to an April 13 news release. 

Maine has the highest percentage of its population fully vaccinated against COVID-19, according to the CDC's COVID-19 vaccine distribution and administration data tracker.

New Hampshire has administered the highest percentage of COVID-19 vaccines it has received, according to the CDC's COVID-19 vaccine distribution and administration data tracker.

As of April 16, more than 564,000 people in the U.S. have died after contracting COVID-19, according to The New York Times.

Examining who experiences rare breakthrough COVID-19 infections after vaccination can help improve our understanding of who is vulnerable and whether variants are at play, but these thorough investigations are often not occuring, according to an investigative report ProPublica published April 14.

Female nurses are about two times more likely to die by suicide compared to the general female population, according to a study published April 14 in JAMA Psychiatry. 

A person's blood type likely does not contribute to their risk of contracting COVID-19 or of developing a severe infection, according to a study published April 5 in JAMA Network Open.

A small proportion of Americans — about 5,800 out of nearly 77 million — have contracted COVID-19 after being fully vaccinated against the infection, CDC officials told CNN.

While most COVID-19 tests on the market can detect new variants sweeping the globe, continued vigilance is needed to ensure the virus does not evolve so much that it completely evades detection, scientists told The New York Times.

As COVID-19 cases swell in Michigan, pediatric hospitalizations are also on the rise, several physicians told the Detroit Free Press.

Annual cases of sexually transmitted diseases in the U.S. hit an all-time high for the sixth consecutive year in 2019, according to CDC data published April 13.  

The White House is spotlighting racial inequities in maternal healthcare and outcomes as part of a proclamation declaring April 11-17 the nation's first-ever Black Maternal Health Week.

For many vulnerable patient populations, such as homebound seniors and the homeless, the single-dose Johnson & Johnson COVID-19 vaccine is the favored option, with the temporary pause on its use complicating vaccine equity efforts, The Washington Post reported April 14.