A nurse prepares a vaccine prior to the vaccination of elderly people at a nursing house in Athens, Monday, Jan. 4, 2021. As part of our Ask 2 series, the newsroom will answer your questions about all things Houston. Question: If I test positive for COVID-19, should I still get the vaccine? Answer: Despite being previously infected with COVID-19, reinfection is still possible. For this reason, the Centers for Disease Control and Prevention (CDC) says people previously infected may be advised to receive the vaccine.