Health
Houston samples wastewater to track the spread of COVID-19
Houston (AP) — The results of a program testing Houston’s wastewater to monitor the local spread of the coronavirus are how it can detect outbreaks in the country’s fourth-largest city faster. Authorities said Thursday that they might have shown.
Since May, scientists at the city, Rice University, and Baylor College of Medicine have tested wastewater from 39 treatment plants in the city. Studies have shown that the genetic material of the virus can be recovered from the stools of about half of patients with the COVID-19 virus. Wastewater analysis looks for the genetic material.
“The goal is to support the development of an early warning system and allow the Department of Health to identify the city’s COVID-19 hotspots earlier and take steps to delay the spread of the disease,” said Mayor Sylvester Turner. “Mayor Sylvester Turner said.
During the summer, Houston’s intensive care unit was filled with patients and the number of cases of coronavirus surged. Since then, hospitalizations have declined and the positive rate for the virus has risen from nearly 26% in July to 6.1% last week.
Turner said the numbers have improved, but the city still reports positive cases and higher levels of death than in the spring. Houston reported 72,196 cases and 1,069 deaths as of Thursday.
Houston is one of the communities around the world running wastewater testing programs to combat the spread of the virus. Universities across the United States are also testing wastewater to detect outbreaks.
Dr. David Parse, a Houston health official, found from sewage data which areas of Houston the virus was heavily loaded, and the health center visited the team door-to-door to inform residents and encourage people to be tested. can do. ..
“This gives people an early warning that they might have missed it otherwise, allowing people to take care of themselves,” Persse said.
Wastewater testing can also provide an up-to-date view of what is happening with the virus in the city. The test is done weekly and the results are returned in the same week. By comparison, more than 40% of nasal swab test data are more than two weeks old, Persse said.
You can use the wastewater data to find out where you are.
After a case of COVID-19 was found in a homeless shelter earlier this year, Perth said the city was able to monitor the facility’s wastewater and detect when the virus returned.
This is not the first time sewage surveillance has been used to detect virus outbreaks in Houston. In 1962, Joseph Melnick, a pioneer in polio research at Baylor College of Medicine, realized that polio could be detected in wastewater and began sampling.
The study encouraged Melnick to promote the faster use of the new oral polio vaccine of the time, which helped stop the outbreak of the disease, an associate professor of molecular virology and microbiology at Baylor College of Medicine. Said professor Anthony Maresso.
“Therefore, we can learn from this historical lesson about the importance of taking such steps for public health intervention,” Maresso said.
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