Delta strains are described like the virus that is injected with stimulants, which can cause the US to lose the achievements in the fight against Covid-19.

Data from Johns Hopkins University shows that the number of Covid-19 cases has increased at least 10% in the past week in 24 US states, in the context of medical experts and federal authorities continue to persuade people

The rapid spread of delta transformations make the pressure increase.

The vaccination point at Miami International Airport, USA, earlier in June: Photo: Nytimes.

We should see the Delta strain like the virus version of 2020 but are injected with stimulants, Andy Slavitt, former counselor for the Covid-19 response team of President Joe Biden, on July 8 of July 8.

For those who have adequate vaccines, the Delta transformation brings very little threats, almost unable to get infected, he said.

But as of 7/7, only about 47.7% of the US population have been vaccinated with enough regimen.

The number of infections and hospitalization is increasing, especially in places with low vaccination rates, Dr. Rochelle Walensky, CDC Director, said at a white house meeting.

The particles with low vaccination rates are often faced with very high infection rates.

Many particles in the above list are also where the Delta transformation is spreading strongly, Walensky added.

The infection rate is also growing across the United States.

However, this number is still much lower than the spring of this year with an average of 71,320 cases per day, or the peak in the US with 251,000 cases.

The hospitalization rate for Covid-19 recently increased.

In California, where data showed that the Delta strain accounted for 43% of the test sample, the positive rate for Covid-19 has tripled in the weeks after the state opened entirely.

The positive rate for the first time exceeded 2% since March, after decreasing to 0.7%, the lowest since the pandemic outbreaks, in early June.

Up to now, the increase in the number of cases has not caused the number of hospitalizations and deaths because Covid-19 soared, but the authorities warned that the number of heavy progresses could increase for a few weeks of the week.

California currently has about 60% of the population of Covid-19 vaccination with enough nose.

A new data analysis shows that groups of people who are not vaccinated, mainly in southern America, are vulnerable communities before the wave of infection and may even become incubators of new strains

The analysis of researchers at Georgetown University has identified 30 infections in particles with low vaccination and significant population scale.

They are mainly in 8 states, starting from East Georgia and stretching west to Texas and from North to South Missouri.

Some parts of the country are very vulnerable, if they do not want to say is more dangerous than in December 2020, Shweta Bansal, Associate Professor of Biology at Georgetown University, commented.

According to medical experts, the Delta transformation is not the only concern for them.

What makes me more anxious is that new strains may appear.

Some experts even begin to propose a Covid-19 test with people who have vaccinated to ensure the Delta transformation cannot penetrate the protective class and make them still infected with the virus.

According to the current US government guidelines, the full vaccinated people may not have to test periodically, as well as do not wear masks in most cases.

I think we should review the policy for the Delta transformation and consider whether the current recommendations are suitable or not, Dr. Peter Hotez, the principal of the National Tropical Medicine School at Baylor Medical University,

CDC only reported data on viral infections after a serious symptom vaccination.