![Health Highlights: Aug. 11, 2021](http://media.assettype.com/healthday%2Fimport%2F27123021%2Forigin.jpg?w=480&auto=format%2Ccompress&fit=max)
Here's some of HealthDay's top stories for Wednesday, Aug. 11:
Experts ask Biden to boost global vaccine supply. Tens of millions of unused COVID-19 vaccines are currently in U.S. warehouses, while most people in Africa and Asia haven't received a single dose. On Tuesday, a consortium of 175 renowned experts urged President Joe Biden to push harder for global distribution of vaccines. Read more
Finally, a big resurgence in new vaccinations among Americans. With cases of Delta variant COVID soaring this summer, new CDC numbers show a doubling in the rate of new vaccinations over the month of July, especially among the young. Read more
Longer wildfire seasons bring worse physical, mental health to firefighters. Speaking to HealthDay Now, the head of California's wellness outreach for firefighters says long days battling blazes is taking an increasing toll on firefighters' bodies and minds. Read more
Vaping just once harms the body. Gone are the days when vaping was thought to be a 'harmless' alternative to smoking: New research shows a first-time, 30-minute use of e-cigarettes sets up a biochemical process that can help trigger disease. Read more
Obamacare's benefits failed to reach minorities in some states. One of the main goals of the Affordable Care Act was to help close the gap in insurance coverage between white Americans and people of color. But a new study shows that didn't happen in states that decided against Medicaid expansion. Read more