As bad or as trying as thenl situation might appear, the thing about the RGV that has to be remembered or considered is that it really is part of an MSA that is a little bigger than San Antonio.
The communication, even during these times of the supposed "closed border", between the Mexican side and the US is very large by numbers and trade. Just through Pharr every day except Sunday about 2000 trucks cross a day, that means 2,000 Mexican truck drivers come over every day, and they get diesel, eat a taco, talk to the customs, FDA, and DOT guys.
All the produce warehouses have folks from Mexico working in them and the Mexican agriculture folks are inspecting food exports going into Mexico. By some estimates there are between 6,000 to 10,000 people living on the US side that cross into Mexico and back everyday for work.
Rio Grande City has US and Mexican customs all together on the US side, co-mingling and working together.
So while the numbers are sad and concerning, the denominator is actually much higher for Hidalgo and Cameron counties and Starr is even higher. The numbers that are being seen should be expected given the true population figures and the demographic of the area. Something like this is what I expected in March or April, but instead the numbers were very low, and part of that was due to the ridiculously low number of tests being run on both the American and Mexican side.