And californias governor revealing theyre not seeing that downward trend yet. In the meantime, protesters pushing back against stay at home orders. The images from harrisburg, pennsylvania. In phoenix, Health Care Workers in masks confronting demonstrators. In denver, too. Tonight, dr. Anthony fauci on the protests, and the risk of reopening too quickly and without great caution. The new results just in tonight. The largescale test on antibodies suggesting the actual number of infections could be up to 55 times higher than the number of confirmed cases in one major county alone. And our continued reporting on using plasma from those who have recovered to give to those fighting the virus. Tonight, we will hear from a patient, a nurse who had been on a ventilator, receiving that experimental Plasma Treatment. Weve heard so much about the lungs. Tonight, what about the virus and your heart . Blood clots, vascular health. The wellknown broadway actor, married with a baby, who has been in a coma. They had to remove his leg because of clotting complications. What were learning tonight. Our reporter at that Meat Processing plant with hundreds of workers testing positive. As tonight food Processing Plants in at least seven states are now closed. The health impact. And what could this mean for the supply at your Grocery Store . And the economy, the price of oil plummeting to negative 37 a barrel. Rebecca jarvis on what this means. And on capitol hill, the next stimulus for americans hits a snag. Where things stand tonight. Gh wgin anher weeky w togeth. Ic a country facing a new test now. How do you reopen parts of the country, how do you save jobs and businesses, without putting more lives at risk . The president saying just moments ago were going to have an economic resurgence. He said its critical to continue the medical war, but we need to reopen carefully, and that americans should follow the guidelines. We cant forget the american lives lost. Now more than 41,000 lives lost, more than 9,000 since just friday. Tonight, there are encouraging signs in new york. This was the scene at a hospital in queens three weeks ago, patients in hallways, every bed filled. Tonight, the hallways are clear, deaths and hospitalizations down. The governor saying theres no room for error. And the president saying he will meet with the governor tomorrow at the white house. Cases still surging in massachusetts. Theyre bracing for the death toll to double in a week. And one of the worst hot spots in america, the pork Processing Plant in south dakota. A state with no stay at home orders. More than 700 workers testing positive. Were there tonight with plants in more than a halfdozen states shut down. The impact coming to Grocery Stores across the country. Protesters across the nation. The tension over saving jobs and saving lives on full display. The protesters, with the man in scrubs standing right before them. We also have new reporting tonight. Weve talked a lot about the lungs. The concern now over your heart. Blood clots, the potential for heart attacks. Well carefully get to it all tonight. Well begin with whit johnson leading us off in new york. Reporter tonight, these stark images from denver illustrating the difficult decisions facing leaders at all levels of government, how to balance the pressure to reopen with the need to protect public safety. In the new york epicenter where the pandemic has inflicted weeks of pain and heartbreak, tonight, signs the state has turned a corner. Look at the curve over the last month. The number of people admitted to the hospital trending downward. Governor cuomo urging caution. The question is now, how long is the descent and how steep is the descent . And nobody knows. Reporter one doctor seeing that decline firsthand. When we first met dr. Matthew bai almost a month ago, he described mt. Sinai queens as a hospital under siege. You can see all the rooms are filled. Usually these halls are very neat and empty, and now you can see theres patients everywhere. Reporter these days a different picture. No patients in this hall at all. It is a beautiful sight to see. Reporter still, across the country, more proof of the devastating toll. In michigan, 5yearold Skylar Herbert becoming the states first child to die of coronavirus. Skylars parents, both veteran first responders. Her father a detroit firefighter, her mother a police officer. Theyve been on the front line. And theyve served with honor and integrity. And they did not deserve to lose their child to this virus. Reporter also tonight, stories of hope. In new jersey, 25yearold jack allard, who was admitted to the hospital five weeks ago and placed on a ventilator, now recovered, walking out of the hospital on his own. In louisiana, a patient discharged in true new orleans fashion. The country is eager to roar back to life, but places like new york city stuck in a standstill. The hudson river, usually crisscrossed by boats, now eerily empty. The mayor today cancelling all parades through june including iconic celebrations like the puerto rican day parade and the pride march. Tonight, growing consensus that the key to reopening the country is rampedup testing. This is one of the new walkin testing sites that just opened up in harlem, a line already stretches down the block. The city is increasing its focus on minority communities devastated by the pandemic and vulnerable residents over the age of 65. New york, like many states, struggling to meet demand. In massachusetts, Health Care Workers in full gear administering tests. In kansas, a long line of cars. In tennessee, the same story. Nationwide, the demand outweighing the supply. Governors pleading for help. Now they want to have us, the federal government, do the testing. And again, testing is local. Reporter Governor Cuomo responding that new york labs are ready to do the tests. They just need the president s help getting the supplies they need. The big question with the testing is the National Manufacturers supply chain and getting that up to scale quickly. Reporter the republican governor of maryland compelled to buy 500,000 test kits from south korea. We provided each governor a list of the names, addresses, and phone numbers of the labs where they can find additional Testing Capacity within their states. The governor of maryland didnt understand the list or too much about what was going on. Reporter tonight, parts of the country slowly reopening. People flocking to some florida beaches. In georgia, the governor declaring gyms, barbershops, bowling alleys can reopen on friday. Some restaurants and theaters, too, with social distancing. Day after day, back to work protests are breaking out. Some larger than others. Many echoing the words of the president , who has egged them on. Even as they violate the administrations own social distancing guidelines. These are great people. Reporter but dr. Fauci warning that the protests, all those people rallying together, could backfire. What you do if you jump the gun and go into a situation where you have a big spike, youre going to set yourself back. Whit, with us here in new york tonight. We just heard the president before we came on the air tonight criticizing some governors who are concerned about the lack of testing. The president saying the republican governor of maryland doesnt fully understand the testing thats available . Reporter david, governor larry hogan of maryland claims he was already in contact with all of the labs on that list. But was told some are federally run, and therefore are offlimits to him. The white house says that will change. New York Governor Andrew Cuomo says its not the labs, but materials that are in short supply. He will meet with the president tomorrow at the white house. Whit, thank you. Weve been awaiting the results of a largescale Antibody Test in los angeles county. And what it could reveal about just how many people have really been exposed to the virus. Tonight, the results are just in. And in that one county alone, finding the number of covid19 cases may be 55 times higher than first thought. Heres Kaylee Hartung from california. Reporter tonight, the major headline. The actual number of covid19 infections may be 55 times the confirmed cases in los angeles county. Usc testing nearly 900 people for antibodies, now estimating as many as 442,000 in the county had the virus as of april 9th. But thats just 5 of the population. The test finding hidden covid cases, but these tests are not good for telling if someone has immunity. Reporter thats because questions remain about whether antibodies provide immunity. Theres an assumption, when you have an antibody that you are protected against reinfection, but that has not been proven for this particular virus. Reporter while Health Officials rush to test thousands more in michigan and new york, critics say the fda is allowing these tests, many coming from china, too quickly before being proven reliable. But one benefit to testing more people for antibodies, their potential to save lives. When plasma from a recovered person is donated to someone whos sick. Connie griffin is a nurse in ohio. She and her husband both put on ventilators. Her daughter choosing who would get the experimental Plasma Treatment. In an interview for abc news live, connie now able to talk today. Do you think youd be where you are today if it wasnt for that Plasma Treatment . No, i dont know that id have made it without that treatment. Reporter her husband responding to another treatment, and tonight safely home, waiting for her to return. Kaylee, back with us tonight. Youve reported on your own recovery from the virus, youve tried to donate your own plasma, and i know youve hit some hurdles. Where does that stand tonight . Reporter i have, david. That hospital in ohio where she received her plasma, it was one of the first in the country giving the treatment. Ive spent a lot of time on the phone in the past weeks. Ive run into dead ends. I submitted a request 2 1 2 weeks ago, they called yesterday to say now that im more than 28 days symptom free, i can donate later this week. Kaylee, thank you. Great to see you back on the beat tonight. Weve done extensive reporting on the virus effect on the lungs, but theres growing data it also could have an effect on the heart. Weve been following the case of nick cordero, who has been in a coma. The 41yearold husband and father. Over the weekend, doctors had to amputate his right leg because of blood clot complications. Steve osunsami on the virus and your heart. Reporter doctors trying to save the lives of patients are seeing more of what happened to broadway actor nick cordero, a blood clot, that in his case cost the tony nominee his right leg. On saturday, they had to amputate. And hes still in the icu tonight. His wife explains that it was a complication from covid19. He is struggling. Just every minute counts right now. Reporter scientists have known from the start that the deadly virus targets the respiratory system. But in outbreaks around the world, theyre also seeing a high number of patients with blood clots. Blood clots that reach the heart are the most concerning. These are lung and heart scans of a patient iom neorans, who was fighting covid19. Blood clot that was threatening to stop his heart. If we had waited to get the scan, or we hadnt gotten it at all, we would not have diagnosed the pulmonary embolism. And we may not have started the blood thinning therapy. Reporter were also learning that the virus itself can do damage to the muscle layers of the heart. In spain, for example, theyre seeing so many patients with blood clots that some doctors are prescribing blood thinners to all patients admitted with covid19. In the u. S. , many hospitals are choosing to do the same thing. Steve, thank you. Tonight, our reporter has traveled to the Meat Processing plant where more than 700 workers tested positive. That was in south dakota. That state had no stay at home order. Weve learned that plants have been shut down in more than a halfdozen states. The obvious Health Concerns for the workers, and the Ripple Effect all the way to the supermarket. Heres matt gutman. Reporter tonight, these Assembly Lines are turning out to be some of the biggest covid hot spots in the country. There are now outbreaks at meat plants in seven states. Including south dakota and iowa, which saw its largest single day spike, most of it at meat packing plants but so far the governor refusing calls to shut them down. And without them, peoples lives and our food supply will be impacted. We must do our part to keep them open in a safe and responsible way. Reporter here in sioux falls, where the governor has not issued stay at home orders, the nations single biggest hot spot. Within just a couple of weeks, the number of positive tests at this plant went from a handful to over 700. And activists fear infection could be far more widespread. Were starting to get reports of family members. And secondary and tertiary contacted people of smithfield employees that are testing positive. The Ripple Effect ity is severe. Reporter and with the outbreak surging in the midwest, doctors here warning no place is immune. There is no part of rural america, urban america that it is not going to affect. Its just part of who we are now. Reporter for those concerned, the cdc says theres no evidence the virus can be transmitted through food, or that it can live on packages for very long. Employees who may have to go back to work at this plant or across the midwest tell us theyre concerned of additional outbreaks, that they could be infected by fellow asymptomatic employees. Matt, thank you. And to the economy. The price of oil doing something weve never seen before, going negative for the first time. Futures contracts closing at negative 37. 63 per barrel. Rebecca jarvis, what does it all mean . Reporter it means oil sellers have to pay oil buyers to take it off their hands. The bottom line is, the world is awash in oil supplies, but demand does not exist. Consumers are home, businesses are closed, sending prices plunging. Station will be free. But the National Average for gas is 1. 81. The analysts predict prices will fall to 1. 50 at the pump in the next month. Rebecca, thank you. And were also following, the next round of stimulus aid hitting a stumbling block over testing. Democrats want a National Testing program, but the white house is resisting. When we come back, the powerful images from overseas. And what it could say about the u. S. In the weeks to come. And the chief of the World Health Organization saying today the worst is yet to come. What did he mean by this . And the storm system hitting tomorrow from baltimore, philadelphia, right through new york. Contactless delivery re offering and setup on all devices. And for those experiencing Financial Hardship due to this crisis, well work with you to keep your service up and running. Hi because at at t, were always committed to keeping you connected. And look, it feels like im just im sewasting time. Nfo on options trading, thats why Td Ameritrade designed a firstofitskind, personalized education center. Their awardwinning content is tailored to fit your investing goals and interests. And it learns with you, so as you become smarter, so do its recommendations. So its like my streaming service. Well except now, youre binge learning. For a limited time, get up to 800 when you open and fund an account. Call 8663009417 or visit tdameritrade. Com learn. Overseas tonight, the effort to reopen. In one of the first countries to impose a lockdown. James longman from denmark tonight. Reporter back to school. These danish students are back in class after weeks in lockdown. Some of the first in europe, a continent slowly crawling back to life. Germany, italy, and spain among other countries easing restrictions but nowhere more so than denmark. How does it feel . Very good. Reporter smaller businesses like hairdressers and beauty salons are open and all elementary schools. Does anyone like being back in school . Yes reporter 12yearold liv is enjoying having a whole desk to herself but its not easy. Is it hard to keep the rules of social distancing at school . Very much. Ive missed my friends. And its hard not to hug my friends very much. Reporter you can see in a busy school, you can have all the social distancing measures possible, but ultimately people still need to be able to move around. Theres only so much distance young kids can keep. We must remember that these are children. They are magnets. They want to be together. Reporter denmark has been able to do this because they moved fast to lock down after just one coronavirus death. But theyre cautious of a second wave. No one has tried this before so we are moving on very cautious and moving on step by step. Reporter the World Health Organization chief says the worst is yet to come. Its not clear exactly what he means by this. But a lot of countries are worried about a second wave. James, thank you. When we come back, tracking the severe storms headed to the northeast. Heast. Back, tracking the severe storms headed to the northeast. If you have postmenopausal osteoporosis and a high risk for fracture, now might not be the best time to ask yourself, are my bones strong . life is full of make or break moments. Thats why its so important to help reduce your risk of fracture with prolia®. Only prolia® is proven to help strengthen and protect bones from fracture with 1 shot every 6 months. Do not take prolia® if you have low blood calcium, are pregnant, are allergic to it, or take xgeva. Serious allergic reactions like low blood pressure, trouble breathing, throat tightness, face, lip or tongue swelling, rash, itching or hives have happened. Tell your doctor about dental problems, as severe jaw bone problems may happen. 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