Health & Fitness

U.S. races to catch up with other countries in COVID-19 sequencing research

Medical specialists have warned for months that the U.S. is falling far behind different international locations in analysis on the evolution of the coronavirus, in each pace and comprehensiveness of method. In early December, the invention of a faster-spreading variant of COVID-19 within the U.Okay. lent urgency to the necessity for genetic sequencing that may assist decide whether or not remedy regimens and vaccines stay efficient in opposition to new mutations of the virus.

Within the U.S., the primary case of the U.Okay. variant B.1.17 was found in Colorado in December, and since then, no less than 15 states have recognized circumstances of the pressure. Public well being specialists say it was already probably spreading right here unseen, a casualty of the nation’s delayed COVID-19 sequencing marketing campaign, and warned that different new homegrown variants may be mutating with out anybody’s information.

The U.S. is estimated to lag behind greater than 30 nations in its sequencing effort, in line with an evaluation by the Broad Institute, from the worldwide GISAID Initiative database.

However Colorado, the place the primary case of the faster-spreading U.Okay. variant was discovered within the U.S., is dashing to reverse this pattern. The state has expanded its public well being employees and tools to hurry its efforts. Its labs have recognized the genetic sequencing of 1,400 samples to this point and intention to sequence some 200 samples per week.

The method of sequencing entails extracting and analyzing the distinctive genetic info in a virus pattern to search for mutations. These findings assist public well being researchers monitor the unfold of explicit variants of the illness. Whereas mutations are frequent and sometimes innocent, the B.1.17 variant seems to unfold extra simply than earlier strains. Each Pfizer and Moderna have stated they imagine their vaccines will nonetheless be efficient in opposition to it.

Even earlier than the Colorado case was recognized, the state’s well being division laboratories have been operating diagnostic assessments that would instantly flag potential samples with one of many U.Okay. variant’s attribute mutations. It was additionally coaching employees on new procedures to hurry the seek for the fast-moving bug.

Emily Travanty, scientific director with the Colorado Division of Public Well being and Atmosphere, stated it “was really a little bit of luck” that the pattern of the primary U.Okay. case within the U.S. got here into her lab.

“We do not have all the samples in the entire state of Colorado, in order that the pattern got here right here to us and that we have been looking out for it was kind of a little bit of luck,” Travanty stated.

Some states have struggled to comply with swimsuit. The surge in coronavirus circumstances has pressured labs to decide on between diagnostic testing of the native inhabitants and sequencing the virus, a resource-intensive course of that may final for days.

“Greater than the rest, the sequencing has come all the way down to staffing,” stated Kelly Wroblewski, director of infectious illnesses on the Affiliation of Public Well being Laboratories (APHL). She stated APHL has heard from labs annoyed with “extremely tight” provides used each for sequencing and different laboratory work.

Researchers on the College of California Los Angeles have been amongst these to desert their sequencing work final 12 months, amid a COVID spike in Southern California.

“We simply did not have the capability,” Omai Garner, director of medical microbiology within the UCLA Well being System, instructed CBS Information.

“The folks I might use for that sequencing are the identical that have been doing the diagnostic testing,” added Garner.

Because the Trump administration involves an finish, senior Biden transition officers say stepping up sequencing work will likely be a key precedence within the funds requested from Congress as a part of the president-elect’s COVID-19 rescue proposal.

In November, the Facilities for Illness Management and Prevention introduced it was increasing its personal capability to gather and sequence coronavirus samples from well being authorities across the nation. Samples despatched to CDC labs recognized the primary circumstances of B.1.1.7 in a number of states, together with Texas, Indiana, and Pennsylvania, state public well being officers inform CBS Information.

This month, Illumina and LabCorp each introduced new CDC contracts to sequence samples of SARS-CoV-2, the virus that causes COVID-19. Illumina has since recognized 51 of the primary 54 circumstances of the B.1.1.7 variant within the nation.

The CDC additionally introduced in December it was releasing some $15 million in funding to assist native sequencing efforts by the Epidemiology and Laboratory Capability (ELC) program, which has trickled out to some public well being labs on the entrance traces of the pandemic.

A spokesperson for the Massachusetts State Public Well being Laboratory stated the company had acquired $3.4 million in ELC funds, which had gone to new employees, tools, and provides. In Utah, officers stated CARES Act funding and an ELC grant of some $176,000 had helped the state enhance sequencing capability to some 3,000 samples a day. And in Arkansas, a spokesperson stated their ELC cash was anticipated to be “coming quickly.”

“They, like us, are ramping up,” Travanty stated of the CDC. She says CDC has now doubled the variety of samples it has requested from states for its pressure surveillance program.

Show More

Related Articles

Back to top button