Troubling trend: COVID-19 numbers rising in all 50 states - KHOU.com

At Houston Methodist, the hospital reported seeing an alarming spike in the number of cases.

Houston Methodist said about 90% of people hospitalized with COVID-19 are not vaccinated.

Houston Methodist CEO Marc Boom said 85% of patients have the Delta variant but the hospital also recently identified its first case of the Lambda variant, which is the dominant strain in Peru.

Boom said about 10% of people who are hospitalized at Houston Methodist are vaccinated, but most breakthrough cases are patients with weakened immune systems from cancer or organ transplants.