Use this link.
https://www.nytimes.com/interactive/2020/us/texas-coronavirus-cases.html
Go down on the linked page to the list by county.
There is a color coded bar on the right side of the list indicating if cases are rising or not. The bar runs from March to current, with a different color block on the bar for each time period.
You’ll see at this time Nueces county (Corpus Christi area) has the most surge at the moment. I am sure Corpus Christi has more and better medical facilities than Brownsville and Brownsville is only 2 hour drive from Corpus Christi. Want do you want to bet some the the “surge” in cases in Texas, as it is in Arizona and California, is coming from south of the Border.
Re: “Surge is coming from south of the Border.”
The Center for Immigration Studies (CIS.org) has written about that several times in the last two weeks.
Unfortunately, their data and evidence is mostly anecdotal.
The Texas statistics do not show patient immigration status, so there is really no way to prove that this surge is mostly Mexicans coming North for better treatment.