After Moderna reported on Tuesday that its second-dose regimen is effective and safe for teenagers, a second coronavirus vaccine for teenagers may be available soon.

Two weeks after receiving the second hepatitis B vaccine, the vaccine was 100% effective in preventing COVID-19 in adolescents. Late-stage clinical trials.

No COVID-19 infection was found among study participants who received two vaccine injections four weeks apart. Two weeks after the participants received the first dose of vaccine, the Moderna vaccine had an effective rate of 93%.

The vaccine was found to be safe and well tolerated in adolescents. No obvious safety hazards were found, because most side effects are mild to moderate in severity.

The most common side effect is pain at the injection site. Other common side effects after the second dose include headache, fatigue, myalgia and chills.

The study recruited 3,700 participants aged 12-17 years in the United States. Two-thirds of the study population received two doses of the vaccine, and one-third of the population received a placebo. Four cases of COVID-19 were found in the placebo group.

After the second dose, all study participants will be monitored for 12 months to assess their long-term protection and safety against the virus. An independent safety oversight committee is continuing to analyze the data from this study.

Moderna said it will submit its clinical trial data to US regulators in early June, hoping to obtain emergency use authorization for teenagers.

CEO Stéphane Bancel said: “We are encouraged that mRNA-1273 is very effective in preventing COVID-19 among young people. “It is especially exciting to see that the Moderna COVID-19 vaccine can prevent SARS-CoV-2 infection. We will continue to work to help end the COVID-19 epidemic. “

Moderna’s vaccine will be the second vaccine used by U.S. adolescents U.S. Food and Drug Administration authorizes Pfizer’s vaccine Early this month Suitable for teenagers from 12 to 15 years old.Pfizer Project Seek authorization Suitable for children aged 2-11 in September.

FDA Authorized Moderna vaccine After discovering that the two-dose treatment regimen was used in adults last year, it was used in adults in December last year Safe and efficient in phase 3 trials.

Moderna’s vaccine uses mRNA technology to enhance the immune system’s response to the coronavirus. It can be stored at normal refrigerator temperature, one month at 35-46 degrees Fahrenheit, and six months at -4 degrees.