Justin Bishop, 13, watches as Registered Nurse Jennifer Reyes inoculates him with the first dose of the Pfizer COVID-19 vaccine at the Mount Sinai South Nassau Vaxmobile parked at the De La Salle School in Freeport, N.Y. U.S. healthy officials say that most fully vaccinated Americans can skip testing for COVID-19, even if they were exposed to someone infected. (AP Photo/Mary Altaffer, File)

COVID-19 cases and hospitalizations in Texas remain at an all-time low. But it isn’t all good news. The number of people skipping the second dose of the COVID-19 has grown.

“We have a large percent – 10% of the people in the community here in Houston – who got their first shot and didn’t get their second shot,” said Dr. David Persse with the Houston Health Department.  

The Texas Department of Health says 8.9% of Texans who got the Pfizer or Moderna vaccine skipped their second shot as of June 27, which is more than 1.2 million people.

“That’s not good,” Dr. Katelyn Jetelina, an epidemiologist with UT School of Public Health said. “It looks like our vaccines, after the first dose, don’t work well at all against Delta, so that second dose is critical.”

A U.K. study found the Pfizer vaccine is 33% effective against the Delta variant for people who only receive one dose, and 88% effective after two doses.

Jetelina said the Delta variant is the most contagious version of the virus so far and it is in Houston. She urges people to stick to the recommended shot schedule. However, if you’re already overdue, getting both doses is key no matter how long you wait in between.