Thursday, October 22, 2020
Home Africa Coronavirus viral loads declining in US patients since start of pandemic, study...

Coronavirus viral loads declining in US patients since start of pandemic, study finds – Fox News

The levels of the virus that causesCOVID-19has been declining in U.S.patientsover time, which could account for the lower number of ICU admissions and overall death rate compared to when the virus first arrived, researchers claim.

The study, conducted by Wayne State University researchers and presented at the European Society of Clinical Microbiology and Infectious Diseases, relied on nasal swabs taken from hospitalized patients in Detroit between April 4 and June 5. They then assessed all samples that had tested positive for SARS-CoV-2 during that time period.

In the first week, 49% of the initial viral load samples were considered intermediate, while 25.5% were considered to be low, and the other 25.5% were considered high viral loads. However, as the weeks went on the researchers started to note that the percentages started to shift in favor of the low viral load category.


“By week five of the study, 70% of the positive samples had an initial low viral load”according to a press release.“This trend in initial viral load coincided with a decrease in the percent of deaths. Almost half of the patients in the high viral load group died (45%) compared to 32% and 14% of the intermediate and low viral load categories respectively.”


The authors acknowledged that confounding variables were not accounted for in their observations, but that the findings suggest an association between initial viral load and mortality.


“Exact reasons for a decrease in initial viral load over time are unclear,” said Dr. El Zein, lead study author.“A downward trend in the initial viral load may reflect a reduction in the severity of the pandemic and trends in the viral load values over time may represent a marker to assess the progress of the pandemic. Rapid implementation of social distancing measures, lockdown and widespread use of facemasks may have contributed to a decrease in the exposure to the virus.”

Read More


Please enter your comment!
Please enter your name here

- Advertisment -

Most Popular

Ryder Cup 2010

McDowell knew the Twenty Ten course like the back of his hand. He’d won the Wales Open on the course that year and during a period when he lived in Cardiff he used the venue as his practice area.As the match descended into the home stretch McDowell sunk a 15-foot birdie to go 2-up on…

GB’s Evans calls opponents ’embarrassing’

Evans was knocked out in the singles in the first round by Kei Nishikori of JapanBritain's Dan Evans said his doubles opponents were "embarrassing" after becoming involved in an on-court row at the French Open.The British singles number one and Polish partner Hubert Hurkacz beat Dutchman Matwe Middelkoop and Brazilian Marcel Demoliner in the first…

US team walks off after ‘homophobic slur’

Collin Martin (pictured playing for former club Minnesota United) came out as gay in 2018Landon Donovan said his San Diego Loyal "would not stand" for bigotry having left the pitch in protest after an alleged homophobic comment was aimed at openly gay midfielder Collin Martin.An opposition player from Phoenix Rising was accused of making the…

As colleges reopened, many more young people got covid-19, CDC reports – msnNOW

Covid-19 cases surged nationally among 18- to 22-year-olds between Aug. 2 and Sept. 5, according to a report released Tuesday by the Centers for Disease Control and Prevention, which urged young adults as well as colleges and universities to take precautions to prevent the spread of the virus.Weekly cases among the age group jumped 55…