In this file:


·         COVID-19 Tests Reveal Surprising Results

·         Study: Patients May Experience Delirium, PTSD From Battling Coronavirus

·         Fewer Than 1% Of Farm Workers Have Confirmed COVID-19 Cases



COVID-19 Tests Reveal Surprising Results


Jennifer Shike, FarmJournal's Pork

May 21, 2020


Initially, when news of novel coronavirus came out of China, experts defined it as fever and shortness of breath, among other symptoms. By making that their case definition, they only went after symptomatic people, says Dr. Jeremy Cauwels, senior vice president of quality for Sanford Health, a healthcare system covering the upper Midwest.


“Out of 100 symptomatic people, you would see about 20 people that would need to be in the hospital, and about five people who would need to be in the intensive care unit,” Cauwels says. “As we are now understanding, fever doesn't have to be part of the disease every time. As we test more people, we're seeing a far larger reservoir of people who have minimal symptoms or no symptoms.”


The result is this group of people is making the actual number of people who are sick, need to be hospitalized or need to be in the intensive care unit because of this disease, a far lower percentage than experts initially thought.


“And the other part that's interesting, at least in the Midwest, is that even of the people who are symptomatic, we're still finding lower numbers of hospitalizations and lower numbers of intensive care unit or critical illness compared to what we were initially estimating,” Cauwels says.


When COVID-19 first struck the U.S., epidemiologists didn’t know the attack rate, or how many people would get the virus. Experts are starting to get a sense of what the attack rate might be. Cauwels says he’s seen as low as 20% of a population affected during an outbreak. And on the high end, he’s seen up to 58% affected.


“Now in those situations, there's lots of gray area in the middle. But a vast majority of those patients are actually asymptomatic,” he says.


Do antibodies equal protection?


“Antibodies equal exposure for sure. Whether antibodies equal protection is really the question all of us have right now,” Cauwels says. “We think it does. It does in many other illnesses.”


For example, he says once you get the chickenpox and you have antibodies to the chickenpox, you're probably never going to get chickenpox again. However, if you've had influenza one year, you can still get influenza the next year. If you were checked, you would show antibodies for it.


“Now the question is...


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Study: Patients May Experience Delirium, PTSD From Battling Coronavirus

Doctors warn that constant worry over COVID-19 is associated with poor long-term mental health.


by John Anderer, (CA)

May 20, 2020


LONDON — Roughly one in four hospitalized COVID-19 patients may develop delirium during their illness, and PTSD is a legitimate potential long-term health risk for recovered patients. Those are the disturbing findings from a new piece of research conducted by University College London.


Delirium is defined as any abrupt change in the brain’s functioning that disrupts and confuses one’s mental and emotional state.


Researchers performed a deep dive on prior studies conducted on past coronavirus patients (SARS, MERS, and any available COVID-19 data). This analysis is what revealed so many coronavirus patients may develop psychiatric problems, either during the course of their illness or afterward at some point. Obviously, COVID-19 hasn’t been around long enough for anyone to know how recovered patients are going to be feeling years down the line. But, the study’s authors say a host of nasty post-recovery complications may develop in patients.


For example, recovered SARS and MERS patients have reported bouts with PTSD, anxiety, depression, and chronic fatigue. So, there’s a high chance the same problems will arise in COVID-19 patients.


“Most people with COVID-19 will not develop any mental health problems, even among those with severe cases requiring hospitalization, but given the huge numbers of people getting sick, the global impact on mental health could be considerable,” comments co-lead author Dr. Jonathan Rogers in a release. “Our analysis focuses on potential mental health risks of being hospitalized with a coronavirus infection, and how psychiatric conditions could worsen the prognosis or hold people back from returning to their normal lives after recovering.”


In total, 65 studies and seven pre-prints were included in this research, all encompassing over 3,500 coronavirus (SARS, MERS, COVID-19) patients. While only hospitalized patients were investigated, some were tracked for periods as long as 12 years after recovery.


They discovered that far more SARS and MERS patients went on to develop PTSD than anyone would expect. Based on a follow-up period of almost three years, nearly one in three...


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Fewer Than 1% Of Farm Workers Have Confirmed COVID-19 Cases


Tyne Morgan, FarmJournal's Pork

May 21, 2020


New data shows COVID-19 illnesses at the farm level are less than 1%. Purdue University teamed up with Microsoft to create an online Food and Ag Vulnerability map.


The point of the map is to show COVID-19’s impact on the farm level is very miniscule when you look at the bigger picture, explains Jayson Lusk, Purdue University economist and one of the authors...