Update: 11:20 a.m. July 22

The Waller County fire marshal and office of emergency management announced a few changes to the July 23 mobile testing site in a July 21 Facebook post.

Individuals who want a COVID-19 test at the site do not have to preregister because the Texas Department of Emergency Management has contracted with a private testing vendor to oversee the mobile site, per the post.

However, if a person wants to preregister, a new link and phone number will be published by Waller County 24 hours before the site opens and will be distributed via social media channels.

A test is still free at the mobile site, per the post.

Additionally, the mobile testing site at the Pattison Fire Department will operate between 8 a.m.-4 p.m.

Questions can be directed to the Waller County OEM and fire marshal office at 979-826-7785.

Update: 11:20 a.m. July 21

Brookshire will host a state-run mobile coronavirus testing site July 23, according to a Facebook post from Waller County Judge Trey Duhon.

The site will be open 9 a.m.-6 p.m. July 23 at the Pattison Area Volunteer Fire Department, 2950 FM 359, Brookshire, per the post. The address is about 11 miles northwest of Katy City Hall.

Individuals who want to be tested for COVID-19 must register at least 48 hours ahead of time and will be screened beforehand. To register, call 512-883-2400 or go online to www.txcovidtest.org.

Waller County and has hosted mobile testing sites previously. The county does not have a permanent testing site.

Coronavirus numbers

A total of 3,050 tests have been administered in the county through July 19, according to data from the Texas Department of State Health Services. The DSHS does not indicate whether that number includes viral tests, antibody tests or both.

With 295 confirmed cases in Waller County per a July 19 update from the Waller County Office of Emergency Management—this indicates the positivity rate in Waller County is 9.6%.

Given a county population of 49,987 in 2018, about 61 per 1,000 people in Waller County have been tested for the coronavirus, and 5.9 people per 1,000 have received a positive result.

Of the 295 confirmed county cases, 181 cases have recovered and none have died, leaving 114 active.