What does Trump's executive order withdrawing the U.S. from the World Health Organization mean for America's health security? Here's a lowdown.

• Trump accused WHO of mishandling the COVID-19 pandemic and being politically influenced by member states.
• The withdrawal could hamper efforts to address current public health issues, like bird flu.
• The U.S. could lose the ability to collaborate on disease preparedness and response, and exchange information about emerging threats to public health.
• The U.S. majorly contributes to the WHO's work, including collaborations with the CDC and NIH on global health security.
• Public health experts worry the withdrawal from the WHO will put the U.S. at a disadvantage when it comes to responding to health crises at home and abroad.