The entire American political system strives to persuade immunizations, but no vaccine is officially licensed by the FDA, making it skeptical.

From the White House to the Centers for Disease Control and Prevention (CDC), from democratic politicians to the Republic and almost the entire scientific community in the US called for people to rush to withdraw Covid-19 vaccination.

According to the observers, the effort to promote the vaccination of the President Joe Biden administration still entangled a special knot that causes difficulty vaccination to be as fast as expected: US Food and Pharmaceutical Agency (FDA)

All three types of vaccines used by the US are Moderna, Pfizer and Johnson & Johnson are only licensed for emergency use (EUA).

However, this mechanism becomes barrier to access to the vaccine for military, schools and some agencies held in the US.

The US military does not force the soldiers to vaccinate some vaccines every year, including the seasonal flu vaccine, but the Covid-19 vaccine has not been included in this list due to the official license.

Similarly, all efforts to force teachers, school staff and vaccines without official licensing are at risk of legal trouble.

Experts say that if FDA removes this button, switching from EUA to the official use permissions for vaccines, the US can make a difference in the vaccination campaign.

Military Registration for Covid-19 vaccination at Fort Bragg base.

Former General Medicine Jerome Adams noted that many schools, universities and businesses fell in the legal embarrassing situation when the vaccine lacked official license and they wanted to wait for safe signals from FDA.

The removal of a license button will help agencies and organizations in the US drafting the internal regulations on vaccines and this is the fastest path to the milestone of 70% of the national population, adams emphasized.

Besides, as long as the vaccine has not been licensed officially, the Psychology of Vaccine is more reasonable to survive in the US.

Matthew Yglesias, former VOX Founder's founding member, warning the skeptic group of vaccines is in the excuse not yet licensed to deny vaccination.

The contradiction is that the director of FDA Janet Woodcock still publicly supports vaccination.

According to Woodcock, Vaccine Pfizer is assessed with high standards of FDA on safety and efficiency.

Faced with an unprecedented pandemic, FDA is still loyal to its traditional vaccine licensing process.

CBER and FDA's model approach causes many confused scientists.

Many leading medical journals have posted research on safety and efficacy for Vaccine using MARN technology, using data from Israel, Qatar, England and many other places around the world

In the medical history, unprecedented to be considered to be safe and effective in this extent, Eric J. Topol, American molecular medicine professor and participated in some advisory committees for

While the vaccine has not been licensed officially despite having a multitude of evidence of their interests, FDA in June has a quick approval for Aduhelm drugs to treat Alzheimer's disease.

Alzheimer's patient treated with Aduhelm drugs, was licensed by FDA quickly in June, though only one of two clinical trials for positive results.

Drugs developed by Biogene, have a high cost but scientific data and evidence of efficiency are controversial.

The US policy analysis is predicted that the PFIZER vaccine will be fully licensed by the FDA in September. Vaccine Moderna is likely to follow shortly afterwards.

To date, about 34% of Americans are eligible for vaccines that are not yet registered, while the new NCOV number has increased nearly three times in the past month and the number of deaths doubled in just two weeks.

According to Topol, the official licensing for Vaccine Covid-19 has become the number one priority issue of the American Community Health sector.