California public health officials said on Monday that people who received a coronavirus vaccine at Oakland Coliseum on February 28 and March 1 likely received less than what the Centers for Disease Control and Prevention recommended for a single dose. – confirming what a TV station reported last. week.
The California Department of Public Health informed people who received a Pfizer COVID-19 vaccine on Monday after 4:30 p.m. on February 28 and between 8 a.m. and 3 p.m. on March 1 of the results, which were determined with the help of the CDC vaccine. experts.
About 6,300 people had appointments scheduled during that time that “could have been affected,” California Department of Public Health spokesman Ali Bay said.
The letter from the state’s health department appears to undermine statements made by state officials managing the Colosseum site in response to inquiries about the underdosing. Last week, clinic officials denied that anyone at the Colosseum received too little vaccine.
State health officials have found that some people may have received a dose of about 0.22 to 0.3 milliliters each, instead of the recommended 0.3 ml of the Pfizer COVID vaccine. However, the CDC said any dose greater than 0.15ml is “safe and does not require a repeat dose to protect people from COVID-19,” the letter said.
Bay said staff at the Colosseum site corrected the difference in dosage on March 1.
“The California Department of Public Health has implemented additional training and quality assurance steps as a preventative measure,” state officials said.
The letter comes days after KTVU reported that two unnamed emergency medical technicians said about 4,300 people who had been vaccinated at Oakland Coliseum on March 1 by 2 p.m. “received the wrong doses of vaccine.” The syringes contained remnants of vaccine at the bottom of the container.