As Texas Inches Economy Open, Can It Screen Enough People For COVID-19?
Texas state parks reopened this morning – albeit with some limitations, and retail stores can re-open Friday for delivery and pickup orders. These are the first steps in Gov. Greg Abbott’s plan to re-open the Texas economy and begin easing back on social distancing.
On Friday, the governor laid out the plan saying it’ll be incremental and science-based. That raised questions about how much more capacity for COVID-19 screenings the state needs.
Abbott said the progress Texas made in slowing the spread of COVID-19 could be quickly reversed if the community gets too lax about social distancing too fast. So, he said more testing will be essential.
“A core component of the ability for Texas to open up our businesses and open up more of our socializing is going to be tied to the increased testing we will be conducting,” Abbott said.
Texas has done a lot of testing for COVID-19 – more than 190,000 tests so far, according to the Texas Department of State Health Services. But when it comes to per capita testing, most other states are doing a better job.
Abbott didn’t set a benchmark Friday for how much he wants testing capacity to increase.
“In the short term, you can continue daily increases,” he said. “With the information we have about a massive amount of testing capability coming to Texas by late April or early May, it’ll be going up quite a bit.”
This weekend, the Harvard Global Health Institute released new estimates for how much more testing the nation as a whole needs to be doing. They set a minimum of about 152 tests per 100,000 residents each day before the country can safely and successfully begin the first phase of reviving the economy. That’s three times the current rate.
According to that standard, Texas should be doing at least 44,000 tests per day. The most tests ever reported in a single day in Texas occurred on April 6, at 14,419, according to the COVID Tracking Project, which is significantly short of the standards laid out by the Harvard Global Health Institute.
Last week, the state averaged about 8,000 tests per day.
Put another way: at minimum, Texas has to do five times as many tests each day to meet the Harvard standard. And because there's no playbook for this coronavirus, there's no firm answer on whether that would be enough testing capacity: Other public health experts suggest that even greater minimum testing capacity is necessary to keep infection from getting out of control again.
So what happens if Texans begin doing less social distancing without sufficiently ramping up testing capacity?
Epidemiologist Bijal Balasubramanian, regional dean of UT Health School of Public Health in Dallas, said the virus will continue to spread rapidly.
“Let’s say for example people are starting to move about and somebody does have coronavirus: When they are not feeling too well, if they cannot quickly get the test that they need,” she said, which means walking into a clinic or going to a drive-through site to get a test and then getting a test result within a couple days, "they are likely to keep spreading this disease in the community pretty quickly.”
Balasubramanian said public health departments also need the capacity to quickly trace that person’s contacts, which means an army of people need to work the phones calling anyone who may have been exposed. There also needs to be a good system to share that information, which is no small task.
Erin Carlson, a professor at the UT Arlington school of Nursing and Innovation, said Texas will need help to increase testing and contact tracing.
“We will need assistance, just like every other state,” she said.
Gov. Abbott said the vice president assured him the federal government will help increase testing capacity, but Carlson said they haven’t done a great job so far.
“The federal government should have avoided an unfunded mandate in this situation, and should provide assistance with testing and contact investigations,” Carlson said. “Both testing and contact investigations are essential for presenting a resurgence of disease.”
She said the governor’s right to take a data-driven approach to re-opening the economy, but it can only work if he has enough data to make good decisions.