Can prepare and preseotect ourselves. For one thing, keep your hands clean, also try not to touch your face. Viruses often spread when we touch our mouths and eyes and nose. Also think about family preparedness and how to take care of someone who might be sick. They also had advice for schools, telling local schools to prepare for absenteeism and explore options for telelearning. Well have more at 11 00. For now, live at valley medical center, well send it back to you. Pretty big information from the county there. The Ripple Effect from the first patient to contract the virus from an unknown origin is greater than we thought. 93 people in solano people are kept in isolation or quarantine because they had contact with this patient. Jodi hernandez is live in fairfield with the latest on that situation. Jodi . Reporter garvin, and those 93 people are just the folks from the north bay vaca valley hospital. There are numbers of that womans family and her coworker whose are now under quarantine, and im told the number could grow. At this point, were up to a 93 individuals at north bay who are not, who are kept out of work until their 14day quarantine is up. Reporter thats how many officials have identified at the vacaville hospital who came in contact with the woman now sick with coronavirus. Some have symptoms and are being tested for the virus. Others are being quarantined. So are the womans family members and coworkers. But the Solano County Health Officers say more people at risk are still being identified. This individual is from a community that interacts fairly frequently. And so there are actually contacts of the patient in multiple counties. Reporter the doctor says two of the infected Cruise Ship Passengers taken to Travis Air Force base have now been allowed to leave the hospital and are in isolation at home. Being tested twice a day. Theyre isolated at home, and they remain at home until they clear. Reporter he says the Community Must understand there are likely many people without symptoms but infected in the community. Thats why Everyone Needs to take measures to protect themselves. Namely, washing their hands frequently. The likelihood is that there are many people out there who are nonsymptomatic or very mildly symptomatic who are nonetheless spreading to other people. . Kind of scary, you know. It really is, because you dont know what youre touching and who has it. Reporter and many people are taking those precautions. Kaiser permanente tells me they are now offering hand sanitation and masks at their front doors, and theyre also offering phone appointments, as seeing a doctor by phone. Meanwhile, ten people are on the ground near Solano County helping with the Solano County case helping to identify those folks. More people are expected to be identified and possibly quarantined. Reporting live in fairfield, jodi hernandez, nbc bay area news. Fears of the coronavirus have now canceled the upcoming Game Developers conference in San Francisco. They Just Announced the gdc set for early march is off for now. The move comes after several Major Companies pulled out over fears of the ongoing spread of the deadly virus. Sony and facebook dropped out, quickly followed by microsoft, unity and more. They hope to reschedule for the summer or possibly later. If theres a Silver Lining to this week on wall street, its that its over. Stocks tumbled once again today because of virus fears, capping their worst week since the 2008 financial crisis. We saw on the screen an animation showing just how much theyve dropped over the last seven days. The dow fell more than 300 points today, closing just above 25,000. The Federal Reserve is promising it will act quote appropriately to the economy amid a coronavirus outbreak. Developments in the outbreak are changing by the hour. So weve created a Coronavirus Crisis center to make sure you have the information you need. Today the cdc announced its ramping up outsourcing testing for the virus. They want every state and local Health Department doing its own testing by the end of next week. A lab in richmond is one of several that has already been processing results for a couple weeks now. The state will distribute kits to local Health Departments so they can process tests too. California has about 1200 kits right now, and the fda will soon allow private labs to create more test kits. So for less than 500 people in the u. S. Have been tested for the coronavirus. Of those a hundred testedmed ca. In comparison, china has tested over 300,000 people since the outbreak started there. So when should you see a doctor . Now here is a suggested criteria. If you have cold and flulike symptoms, wheezing, runny nose, fever, if youve traveled to any of the coronavirus hotspots overseas or been in contact with someone who has, the cdc isnt recommending masks for healthy people, only for people sick with any respiratory virus. Silicon valley is stepping up to help track down a cure for the coronavirus. And we got an exclusive look inside a Biotech Company busier than ever. Based in newark, they are make being computercreated copy the of the coronavirus virus to send parts of it to other Biotech Companies to stied. By breaking down the virus into parts atom is able to send those working on a vaccine specific pieces they want to examine without taking the risk of trying to use the actual coronavirus. We build virtual models first in the computer and identify Different Properties of the coronavirus or bits and pieces of it, and then we take that information and convert it into physical entities. Atums customers include other Biotech Companies. Theyre making up to 90 of the coronavirus genes which allows t for Cutting Edge Research but keeps it safe. Our continued coverage continues in a few minutes. That includes a celebrity chef pleading with people to put aside fears and continue to support chinese restaurants. Now to other news. We have amazing video to show you. A pilot forced to make an emergency landing, shutting down the runway for more than half an hour. Take a look. Can you see a private plane slam into the runway, land on its belly after its landing gear malfunctioned. Laura sambol was airport when the plan made the daring landing and joins us live. Reporter some very tense moments out here today. That plane landed on the runway, right here behind me. It landed on its belly afterity landing gear malfunctioned midair. Watch as the piper malibu aircraft makes the emergency landing. The pilot lowers the plane slowly, wheels nowhere in sight. The pilot hides for foam already sprayed by firefighters and uses the entire length of the runway before finally touching down on the planes belly. It was a good landing. Any landing you can walk away from is a good landing. Reporter he has flown private plane of about a dozen who cam on. And i wanted to see it. Reporter the pilot and three passengers took off from idaho. They originally tried to land at the reed hill view airport in san jose but were unsuccessful. They made a pass, you know, low pass over by the tower so the tower could look at their gear and see if it was actually not down or in a bad position. Reporter the pilot then decided to land at sjc and circled around, burning fuel off for about 90 minutes. After it was all over, the pilot didnt want to talk to news crews. Obviously, a lot of nervousness for his passengers and his wellbeing. Reporter the belly landing shut down both runways temporarily, forcing five flights to be diverted to other airports. Theyre thinking that they want to do the best job that they can to get down and safe on the ground. Reporter both runways are now back open, and the airport is operating as usual. Reporting leit reporting live from san jose, lora t lora sambol. Youre looking at the flight path of the miami from flight aware. It shows the plane circling over the south bay about an hour before the landing at sjc. Something we are not used to seeing in february. Look at this brush fire burning frighteningly close to homes. It broke out on san bruno mountain. This video from skyranger earlier today, Christie Smith joins us from the scene. A brush fire in february is rare, but weve had a very dry winter and very warm week. Reporter yeah, thats right. And the fog has rolled in up here now. But earlier, it was clear, and you could see a huge plume of smoke coming from the mountain, and of course that made neighbors quite nervous. Firefighters are still on scene. Theyve gotten this under control, but theyve been talking about concerns over the conditions and lack of rain. Its a fire. Back in my house. Reporter jerry rushed to see how close the flames were to his home. Pretty scary. Reporter he shot video of the fire in san bruno staten valley park. You think about all those wildfires that took hundreds and hundreds of homes. Reporter the dry february worries him. I was scared. I was scared. Reporter a couple on the block hosed down the hill behind their inlaws home. We were lucky to be here and keep an eye. Reporter dozens of firefighters in a helicopter worked to put out the fire quickly. The first thing that comes to mind is just how unusual this is for the end of february. Reporter jonathan cox with cal fire says its too early to say for sure what the fire season will be like. But i would say there is an element of concern on cal fires part that unless we see significant rainfall we could see very early fire conditions in california. I was just concerned, you know, and keeping a watchful eye. Reporter now firefighters were able to stop this at about six acres. Theyre still working on a cause and say they will have crews here on scene throughout the night. Reporting live in san mateo county, Christie Smith, nbc bay area news. Still to come, preparing for super tuesday, what a new poll shows about the president ial race in california. Im chief meteorologist jeff ranieri. All of that record heat we had this week is now starting to move off towards the west. And its going to make way for this much colder storm. You wont believe the drop were going to see the next couple days, and ill show it to new about seven minutes. Growing up in la, bad air forced us indoors. And now we have to deal with this. Climate change is an emergency. Thats why i wrote the nations most progressive climate law. And thats why im endorsing tom steyer. Because when big oil tried to stop our clean air laws, he led us to victory. Same with the keystone pipeline. When tom says we can save the world and do it together believe him. Im tom steyer and i approve this message. Okay. We have more break being news on the coronavirus. The Palo Alto School district Just Announced its sending two students home because of possible exposure to the virus. They stress they made this move out of an abundance of caution. Now to how fear of the outbreak has hit asian businesses across the bay area hard. Many are reporting a huge drop in business. Damian trujillo is live in san jose with the details. Damian . Reporter well, garvin, merchants here at the pacific rim plaza say business is down 30 to 50 . So today they brought in a heavy hitter to prove its safe to eat asian food. There was a time it was hard to get a table at hunan fusion restaurant, but this has been the scene over the last couple months. The business right now is getting slow. Before its very busy. Reporter amy yow says receipts are way off this year, the same as other businesses in the pacific rim plaza, and they blame coronavirus. There are a lot of fears my office have received from the public. [ applause ] reporter Assembly Member chu brought out a familiar face to demystify those fears. Martin yan of yan can cook. I dont think discrimination or targeting a group of restaurant helps. Reporter while some customers might be discriminating right now based on unfounded fears, yan points out the coronavirus doesnt. Its virus. They dont understand the border. They go anywhere. They dont just go to chinese restaurant. They can go italian restaurant, they can go anywhere. Reporter the oriental Food Association says its a double whammy for them. Merchants are hurting and cant get supplies imported from china because those factories are closed. Live in san jose, Damian Trujillo nbc bay area news. Do you want more information about the coronavirus including how to prepare . Go to our website. We have a whole section on all of our reporting on the virus. Thats at nbcbayarea. Com. A new uc berkley poll shows Bernie Sanders has a solid lead in californias primary on tuesday. The tighter race, well, thats for second place. 34 of california voters back sanders, according to uc berkleys institute of governmental studies. Elizabeth warren is a distant second at 17 . Mike bloomberg and Pete Buttigieg are behind her. Joe biden pulling far behind with 8 . On our website, we have a full election guide. Their school is closed for toxic chemical testing, but students are still getting inspired outside of the classroom. This morning, 40 students and several teachers put on gloves and picked up trash along a homeless encampment. Students also handed out meals. They are mostly juniors and going to school at west Oakland Middle School until their school is reopened. We have no school, so were just giving back to the community. Well, its educational. This is something we dont have the chance to do so much during the regular school year. It closed last week after a chemical was found in the ground water which can be toxic when it vaporizes in the air. The school will likely closed again next week. Tests so far have come back negative. A little cooler today than yesterday but thats nothing like whats coming. Huge, huge changes coming this weekend, but were also going to see the wind pick up. Lets get you all ready to go for that weekend. I did want to start off, first, though, with a look at the San Francisco giants and rockies. They have a spring training game in scottsdale. Well have that live tonight at 6 00. Hang on. Less than an hour, well have all your coverage for that first pitch. Well have low 70s and 60s through the game and partly cloudy skies, right here on nbc bay area. Big time changes today. We had cloud cover move in, certainly felt different out there for you. After lots of 70s in the south bay. And you can see50s on the way for tonight. So you might need a light jacket if youre headed out to dinner on your friday night. As we move through tomorrow morning i do see colder temperatures pushing back in. Lots of widespread 40s. Down to 42 here in the tri valley, but we should also have sunshine mixed in. More of a partly cloudy morning for you, except in San Francisco where i do think we could have a little bit of fog returning. Youll want to watch out for in the morning otherwise down to a chilly 41 in the north bay. The big, big change. Were going to see happen this weekend is all about a system dropping down from the north. Its fairly dry, but, as this kicks down, its going to push that record heat off towards the west. So we get a cold blast of air, also a little bit of wind kicking up. And look at the difference its going to make. Instead of 70s and 80s in the south bay, back down closer to average, 62 in los gatos, 65 in san jose. An abrupt change but maybe a welcome one for you. A little refreshing as you head out on saturday. 64 fremont and 61 in oakland. Big difference in san mateo, 59. Redwood city 62. San francisco primarily 50s here from the ingleside to the marina, close to 60 in the mission at 59. And right here through the north bay, have you at 64 in santa rosa and dropping it way down to 63 in sonoma, so the only problem i see as we move through tomorrow, with the wind starting to kick up to about 17 Miles Per Hour is your allergies. Look at the pollen here. It is high for juniper, cypress. As we move into sunday, gustier, just a 50 chance of a spotty shower, as that system moves on through. Well warm it up into the 60s next week, right now, no big storms over the next seven days. Inland valleys, no more 80s, down to 59 on sunday. We are still looking at, on my forecast, march 8 through the 12th, for the next window to open up for potentially some widespread rainfall. I have that at 65 chance right now. That happens. Thank you very much. Coming up, julia roberts, one of San Franciscos newest residents. Well show you inside the multimillion victorian home she just bought. Woman the deadly corona virus officially hitting the us. Man the markets are plunging for a second straight day. Vo Health Experts warn the us is underprepared. Managing a crisis is what Mike Bloomberg does. In the aftermath of 911, he steadied and rebuilt americas largest city. Oversaw Emergency Response to natural disasters. Upgraded hospital preparedness to manage health crises. And hes funding Cutting Edge Research to contain epidemics. Tested. Ready. Mike im Mike Bloomberg and i approve this message. We choose to go to the and do the other things, not because they are easy, but because they are hard. President kennedy knew settling for halfmeasures wasnt good enough. So when candidates say we cant guarantee health care for all, make College Affordable for all, combat climate change, or create a world at peace, remember that america is best when we strive to do big things, even when its hard. Im Bernie Sanders and i approve this message. All lanes of i80 in Solano County are open now after a crash involving an amazon truck shut down much of the freeway earlier today. It happened around 10 30 this morning in the dixon area the big rig was hit by another car, crashed in the center area causing problems for the other side. Police closed multiple lanes. Nobody was seriously hurt. If you recently had your tools stolen you may be able to get them back soon. Oakland have busted a man they say was running a tool theft ring. Police are now looking to return all of that gear to their rightful owners. Get ready for bus changes. Muni says it will reroute its buses because of the matrix filming. De the financial district. You may have seen some filming around the city that involved explosions, lowflying helicopters and keanu reeves. Most of us are afraid to look at our 401 k s right now. Julia roberts is investing in San Francisco. She just dropped 8 million on this Presidio Heights victorian. Five bedrooms, four and a half baths. She got a deal since the home was originally listed for more than 10 million just last fall. It sounds like a riddle. A pair of twins, one turning four and the other celebrating their first birthday. Tv just keeps getting better. How you watch it does too. This is xfinity x1. Featuring the Emmy Awardwinning voice remote. Streaming Services Without changing passwords and input. Live sports with realtime stats and scores. Access to the most 4k content. And your movies and shows to go. The best tv experience is the best tv value. Xfinity x1. Simple. Easy. Awesome. Xfinity. The future of awesome. Fisnt just about polar bears. Were fighting for our lives, were fighting for clean air and clean water. Thats why i wrote the law to send billions from polluters to communities suffering the most. And only one candidate for president was with us back then, tom steyer. And hes still fighting for us, pledging to make clean air and clean water a right for everyone, regardless of your zip code. Thats the truth. Thats tom steyer. Im tom steyer and i approve this message. Coming up next, the nightly news with lester holt. A coronavirus emergency in tokyo. A look at how the epidemic there may alter plans for the Olympic Torch Relay set to start next month. Lester joins us in less than two minutes. Then after that, giants night on nbc bay area. The giants will take on the rockies. After the game, a twohour episo episode of dateline. A pair of twins celebrating their first and fourth birthday at the same time. How is that possible . Well show you. These are the twins, miles and walter. Miles was born february 28, 2016. Minutes later, walter was born on february 29th. The twins celebrated turning four at the berkley hospital they were born. This is a really special year, the first leap day weve had since they were born. And we just feel so grateful to have the opportunity to celebrate that. Well, the chances being born on leap day, one in about 1400. I have to say happy birthday to william, thats my friends boys birthday. Hes 8 or really 2. Forever young, pretty much. Nbc nightly news next. Bye. Breaking news tonight, the stock market closing the week in free fall as coronavirus fears surge. And the mystery growing, how is a california woman infected without any link to travel or other patients. We do not know how she got her infection. I want to be very clear. Health officials denying it could have spread from an air base quarantine. The race to find anyone that patient crossed paths with. President trump speaking late today. The new travel order hes considering giving tonight, our team spanned out across the world. Also, the impact on your money. The worst week since the 08 financial crisis and the run on supplies shortages of Hand Sanitizer and masks. Do those masks make you safer