Covid-19 is now the No. 3 cause of death in the US. But testing to find and isolate cases has dropped off – WREG NewsChannel 3

(CNN) A virus that didnt even exist a year ago is now killing more Americans than Alzheimers disease, accidents and diabetes.

The novel coronavirus has infected more than 5.4 million Americans and killed more than 170,000, according to data from Johns Hopkins University

Over the past three weeks, the US has averaged more than 1,000 Covid-19 deaths per day.

Covid is now the No. 3 cause of death in the US ahead of accidents, injuries, lung disease, diabetes, Alzheimers, and many, many other causes, said Dr. Thomas Frieden, a former director of the Centers for Disease Control and Prevention.

Heart disease and cancer are the leading causes of death in the US, according to the CDC.

The rate of deaths from Covid-19 is also much greater in the US than in many other countries, Frieden said.

Last week, Americans were eight times more likely to get killed by Covid than were Europeans, he said.

Just as more students head back to school, health experts are worried about a disturbing trend: decreasing testing combined with high test positivity rates.

In other words, Covid-19 is still spreading rampantly, but theres less testing to find and isolate cases.

The number of tests performed each day in the US dropped by an average of 68,000 compared to the daily rate in late July, according to data from the Covid Tracking Project.

Fifteen states conducted fewer tests this past week compared to the previous week: Mississippi, Louisiana, North Carolina, Washington state, Rhode Island, Wisconsin, Minnesota, Colorado, New Mexico, Arizona, Utah, Nevada, Idaho, Montana and Alaska.

Yet test positivity rates the percentage of tests that are positive are still higher than the recommended 5% in more than 30 states, according to data from Johns Hopkins University.

The testing situation is not good in the United States. What were not picking up is people who are contagious, said Dr. William Haseltine, chairman and president of ACCESS Health International.

Were probably missing 8 out of 10 people who are contagious. And any decrease in testing is worrisome because were not already doing well. And if you dont pick people out of a crowd who are contagious, then the epidemic spreads. This epidemic is still spreading widely.

Medical experts say there could be several reasons.

One of the reasons that testing is decreasing is that supplies arent being shipped to places that can test. I think its part of a strategy not to count how many people are infected, Haseltine said.

Another reason is that people may be less motivated to get tested, knowing it can take several days or longer to get results. And major delays can make some tests borderline useless.

Dr. Kent Sepkowitz said hes worried some states may be taking cues from President Donald Trump, who said when you do more testing, you find more cases, which might make the United States look bad.

Sepkowitz noted that several states that have touted decreased case counts also had some of the highest test positivity rates an indicator that the virus is spreading.

So even as the rates are worsening, many states have decided to reduce their efforts to find cases, he wrote. As a result, by looking less, they are finding fewer cases and sure enough, the case numbers are going down.

Florida Gov. Ron DeSantis said the state has seen six consecutive weeks of decline in test positivity rates.

And the number of patients hospitalized with coronavirus has declined by nearly 40% since peaking July 22, he added. The number of ICU patients is down 30% since July 18.

DeSantis said he thinks the downward trends across the state are durable. Were going to continue to work hard to be able to see these good trends.

One of the measures the state took to blunt the number of cases was closing bars in late June.

Halsey Beshears, Floridas top business regulator, is reviewing feedback and ideas from his meetings with bar and brewery owners from across the state, but no timeline for the reopening of bars has been set, according to Karen Smith, a spokeswoman for the Florida Department of Business and Professional Regulation.

While no timeframe for reopening is certain, Secretary Beshears understands the urgency advocated by business owners in these recent meetings, Smith said.

While medical experts hope a vaccine will be publicly available in 2021, researchers have encountered a problem: not enough Black and Latino volunteers have signed up for clinical trials.

Of the 350,000 people whove registered online, 10% are Black or Latino, according to Dr. Jim Kublin, executive director of operations for the Covid-19 Prevention Network.

Thats not nearly enough, as trial participants are supposed to reflect the population thats affected. Research shows more than half of US Covid-19 cases have been among Black and Latino people.

Much of the distrust stems from a history of medical atrocities against minorities. From 1932 to 1972, Black men were subjects in the Tuskegee syphilis study without their knowledge or consent and were not offered penicillin to treat their disease.

In the 1800s, Dr. J. Marion Sims experimented on slaves and performed surgeries without their consent and without anesthesia.

And from the 1940s until the 1970s, researchers in several studies exposed hundreds of subjects mostly Black people to dangerous amounts of radiation.

Health officials are trying to gain the trust of minority communities and recruit more diverse volunteers for Phase 3 coronavirus vaccine trials.

So far, phases 1 and 2 have shown the vaccine to be safe. Some volunteers experienced fever and muscle aches, but they felt better after a day or two.

There is some good news: A new saliva test could give Americans a quick way of learning if they have Covid-19 and if they need to isolate to help prevent the spread.

Researchers from the Yale School of Public Health created the SalivaDirect test, which received emergency use authorization from the Food and Drug Administration on Saturday.

If cheap alternatives like SalivaDirect can be implemented across the country, we may finally get a handle on this pandemic, even before a vaccine, said Nathan Grubaugh, a Yale assistant professor of epidemiology.

Unlike some other tests that require specialized supplies, the SalivaDirect test doesnt require a specific swab or collection device. It can also be used with reagents from multiple vendors.

We simplified the test so that it only costs a couple of dollars for reagents, and we expect that labs will only charge about $10 per sample, Grubaugh said.

Researchers said the new test can produce results in less than three hours, and the accuracy is on par with results from traditional nasal swabbing. They said SalivaDirect tests could become publicly available in the coming weeks.

Shortly after their classrooms reopened, thousands of students must stay home and quarantine after coronavirus clusters at their schools.

Health experts are urging younger Americans to take precautions seriously, especially after the CDC said Covid-19 cases among children have been steadily increasing from March to July.

Recent evidence suggests that children likely have the same or higher viral loads in their nasopharynx compared with adults and that children can spread the virus effectively in households and camp settings, the CDC said.

Outbreaks have also emerged at colleges and universities.

Oklahoma State University said Sunday that at least 23 sorority members in an off-campus house tested positive for the virus. The entire house is in isolation or quarantine and will be prohibited from leaving the facility, the university said.

Less than a week after starting classes, the University of North Carolina at Chapel Hill announced its fourth cluster of coronavirus. The clusters were located at two residence halls, a private apartment complex that serves students and the Sigma Nu fraternity.

The North Carolina Department of Health and Human Services defines a cluster as five or more cases in proximity. As of Monday morning, 177 students are in isolation and 349 are in quarantine, both on and off campus. About 30,000 students attend the university.

The school has shifted to online learning for now.

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Covid-19 is now the No. 3 cause of death in the US. But testing to find and isolate cases has dropped off - WREG NewsChannel 3