This is an experimental therapy that can be used in the US against the new strain of coronavirus.

The Houston Chronicle Magazine said Houston Methodist Hospital had transfused the blood of a donor who had been in good health for more than two weeks. This method is called serum therapy over 100 years ago and was first used in the Spanish flu pandemic in 1918 and then other infectious disease outbreaks in the twentieth century.

"At Houston Methodist we have the capability, expertise and patient base from the healthcare system. We feel compelled to try this therapy. There is a lot to learn about the disease while If it is possible to help save the lives of critical patients, then the application of our entire blood bank resources, experts and academic medical centers is extremely valuable and important. "Said Marc Boom, president and CEO of Houston Methodist.

The hospital has started to announce that donors from about 250 patients who have tested positive for Covid-19 will recover.

“Serum therapy may be an important treatment. We don’t have too much time with many options, ”said Dr. Eric Salazar, chief investigator at Methodist Research Institute.

A second patient has also recently received a blood transfusion. While it is still too early to know whether a blood transfusion will benefit patients or not, it is still the hope of the doctors and experts at Houston Methodist.

Plasma donation is similar to blood donation, in that the donor is connected to a plasma extract device and returns red blood cells into their body. This process usually takes about an hour and can be done more often than conventional blood donation.

Previously, China also used cured human plasma to treat coronavirus and achieved positive results.