But the president s surprise appearance is causing concern in prar parts of the medical communities. Doctors are raising questions about the regimen of drugs the president is taking. Heres nbc bay areas sergio quintana. Reporter almost immediately after video of President Trumps ride in a secret service suv was posted, a chorus of doctors sounded off. A white house spokesman clarified that the suv is hardened against the chemical attack so the public was safe. But there is concern for those inside. But the fact that he puts himself in a hermetically sealed car for the purpose of a photo op is irresponsible. He is unnecessarily endangering the lives of secret Service Agents who are there to protect him. Reporter some of the agents do seem to be wearing mask, but is a huge concern. Signed off on the appearance and proper precautions were taken. Beyond the photo op, doctors are raising concerns about what the medical Team Revealed during the briefing at walter reed hospital. The president has experienced two episodes of transient drops. Reporter the president suffered two drops in oxygen his doctors decided were so serious they gave huh a steroid called dexamethasone. The medicine hes on is reasonable. One im worried about is dexamethasone. In a fair number of people it will cause mood swipgngs, it wi cause confusion, it can even cause psychosis. Reporter President Trumps doctors say he has been given three strong drugs since a few days ago including an experimental cocktail. The president at least has what we classify as rather than. Reporter during todays medical briefing, the president s team of doctors said hes responding very well to treatment. If he continues to improve, they may begin discharging him tomorrow. Sergio quintana, nbc bay area news. Sergio was talking about it moments ago. One of the treatments the president is receiving is a experimental cocktail by regeneron. The company is speaking about the experimental treatment plan. They released the drug under compassionate use approval that goes through the fda outside of clinical trials. We could with a single injection dramatically lower viral levels 100 fold, by 99 . The treatment is still under review and being tested on patients at all different stages of the infection. Tonight the doctor coordinating the president s care admitted he had down played the president s condition during a press briefing yesterday. I was trying to reflect the upbeat attitude that the team, the president through this course of illness has had. Even with that explanation, dr. Sean conley continued to evade questions from reporters when he was pressed about the president s lung scans. Conley is a decorated navy veteran, an osteopath. A fully licensed physician treating the body holistically. Nancy pelosi said the American People need to trust his staff what they are telling about his condition. On face the nation, Speaker Pelosi said shes worried the information doctors are releasing has to be approved by the president. She went on to say, quote, we have to have confidence in the judgment of the doctors who are treating him. Not only do they give a presentation notice. When they give a presentation to the press, it has to be approved by the president , thats not very scientific. Thats not very scientific. Tonight just 30 days from election day, a new poll shows joe biden has jumped ahead. Nbc news wall street journal poll shows biden with a 14 advantage over the president , 53 to 39. Before the debate, biden led by only 8 points, but that poll was taken before the president was diagnosed with covid19. So things may have changed again. Nbc poll shows 43 of voters approve of the president s job performance. 55 disapprove. Joe bidens Campaign Says he once again tested negative for the coronavirus. Biden joins lester holt tomorrow night for a town hall here on nbc bay area. You can see it starting at 8 00. With the president ial election drawing closer, people are making plans to vote. Thats because early voting begins tomorrow here in california. Nbc bay areas Christie Smith spoke with voters who are ready. Reporter in San Francisco, a sign the election is near. The Voting Center opens tomorrow. I havent decided if im going to come down here. Ill probably just mail it in. Im supposed to receive it this week. Reporter rob delong is waiting for his mail ballot. Given the climate in washington hes more inspired to vote. Get it in. Reporter many are eager and hope the feeling is widespread. Many people say california is going to go for biden, so we dont have to vote. I think we want to get as high a National Vote total as possible to send a clear message of who the winner is going to be. So i think everyone in california should vote. Reporter on the eve of early voting, supporters of the president had a car parade and met up outside city hall. As the president continues to recover from the coronavirus, questions are mounting about the impact on the election. I think the uncertainty, confusion, a lot of trepidation about what happens next, people arent sure. Reporter university of San Francisco professor of politics james taylor expects very high turnout. Nationally, we already have 3 Million People who voted, and normally it would be not even 10 of that. Reporter this year every registered voter is being mailed a ballot because of the pandemic. If you havent already received one, they should be arriving this week. In San Francisco, Christie Smith, nbc bay area news. Turning to decision 2020, ballots will soon be heading to homes that are no longer standing. Thats what many fire victims are wondering how thats going to work. Napa county registrar of voters is trying to get the word out about options they have. Voters can either collect their ballot at the post office, which is holding mail for those whose homes burned down, or they can change their Mailing Address up until october 27 and get a new ballot sent there if they cannot pickup their ballot from the post office. With two months of fire season left to go, a very troubling statistics. Wildfires in california have now scorched more than 4 million acres. That number brakz the record for the most land burned in a single year. For a little perspective, 4 million acres is more than 6,000 square miles or an area larger than the state of connecticut. Whats most incredible is the vast majority of the damage has happened in just the last seven weeks. Nearly 17,000 firefighters are still trying to contain about two dozen fires across california. As fire crews continue to make progress on the glass fire, some people in the north bay are being allowed to return home. The Evacuation Order for the entire community of calistoga was downgraded to a warning late this afternoon. We caught up with some people as they returned home for the first time. But instead of happy, some return to distress, anxiety and fire fatigue. It was stressful. I mean, going through so many times in the last four years three years has been one thing after the other for us. Mixed feeling because, you know, when you get the news that you have to leave your town, its a horrendous feeling. The fires caused extensive damage to the famed wine country region. But the city of calistoga did not sustain any damage. You see it right there. Cal fire is investigating what could be dangerous and illegal activity at the glass fire. There are reports of people setting illegal backfires to try and save homes and businesses. Its also possible they have hired Fire Fighting crews to do the work. They said it is dangerous to set fires. They have arrested eight suspected looters found in the evacuation area. Here are the fire lines. Glass it fire has burned nearly 65,000 acres. 21,000 structures threatened 36,000 people, evacuated the fire. Now 26 contained. That is up from 17 earlier today. So good improvement there. What a difference a day makes. Take a look at this side by side photo from san jose. The National Weather service tweeted this out showing yesterdays smokey, hazy skies. Today, oh, yeah, much clearer. The air better. Take a look outside right now. You see the transamerica building in San Francisco and the fog is just making it an absolutely gorgeous picture. Rob maeda joining us now. They dont see a gorgeous picture. They say its helping us out and there may be more help on the way, rob. Yes, and those low clouds bringing cooler temperatures but also a big change in the air quality. Lets show you from region to region in the bay area. South bay mostly in the green, which is good timing for the 49ers game. You see that, good moderate air quality around san jose. Moderate near oakland, still in the green for San Francisco. The one area to watch between calistoga and yountville tomorrow, healthy air which will continue into tuesday. Overall an improving weather picture and one that may involve some rain chances as we go through the week. Look at that, by friday, the first of two systems were watching. A close change in the forecast coming up in a few minutes. Back to you. Sounds good, rob. Now in nbc bay area, the 49ers on sunday night football at levi stadium, an unusual scene. No fans, of course, and not only that, an unfortunate ending for the 49ers. R raj mathai and janelle wang anchoring all evening. Terry, thank you. It was odd, it was erie. There were about 100 people it seemed like here in levi stadium when theres normally 70,000, janelle. It was weird. We could hear the players on the field all the way on the concourse. It was still a great game. But definitely different. You know what, keep the energy up was the d. J. He was playing music throughout the entire game. He did a really good job keeping the energy, keeping the players pumped up. This is what it looked like behind the scenes. Empty stands, security guards to keep everyone in their own zones. Theres four tiers of safety. Were tier two, tier three, tour one is the players. Everyone following safety protocols. Everybody has to mask up even when talking on tv. Those are the rules for santa clara county. As for the game, the back breaking interception which led to an eagles touchdown late in the game, the fourth quarter. He ends up getting benched. C. J. Comes in. Bottom line, 49ers have to move on. Heres George Kittle. I expect our team to flush it, get 24 hours. When you flush it, guys linger on that, you have a bigger problem. Its football. You get 16 chances and we have to come out there and just try to get 10 next week, hit the ground running on monday. 16 games, check it out the window, next week jimmy g. Comes back and we have the dolphins. Niners 22. Then back to sunday night football primetime against the rams here at levis. We will be here. Thats going to do it for us. Later Anthony Flores will have all the highlights and a lot more post game reaction. Terry. Youve probably seen them, black and white patterns you can scan with your phone. But those qr codes, how safe are they . Nbc bay area responds next. Plus an overseas conflict with far reaching impacts. Tonight whats going on in armenia and how people drew attention to it in the south bay. Were seeing them everywhere, those qr codes, black and white patterns you can scan with your phone to access websites and apps. We even use them sometimes on our newscast. Theyre more popular than ever with businesses. Unfortunately now with hackers, too. Consumer investigator chris chmura has the warning. Qr stands for Quick Response. Some thieves are corrupting these quick codes for fast cash. With four lots, two garages and 2,475 total spots, its easy to forget where you parked at san jose international. But this airport qr code can help. You scan it when you park, and it saves your location for later. Sjc says you can trust its qr codes. Managers monitor and manage the qr code system there. Reporter but as Quick Response codes are popping up everywhere dr. Dr. Allister martin star qr. Reporter we need to slow down. Its just another way for a hacker to get to your device. Reporter alex mosher is with mobileiron in mountain view. 40 scanned a qr code in the past week, and 53 wanted to see more of them. But 71 admitted they couldnt spot a malicious qr code. You dont always know when youre scanning a qr code if its taking you to a site you can know and trust. A qr code thats legitimate and one thats not look exactly the same. Reporter mark cray knack said he fell victim. I cant believe i did that. Reporter he used a Small Business qr code to make a contactfree payment. It asked for a qr code. I thought it was part of a payment. No. Reporter a 40 charge from Eastern Europe appeared instead. Mark alerted the shop. Fortunately his Credit Card Company caught the con and reversed the bogus charge. I tell people around me to do the same. Reporter how is this happening . Alex mosher said thieves are creating qr codes they print and paste over a real one and wait for you to scan. Malicious codes can send you a fake bill like happened to mark or open your phone to hackers. You need to check for tampering before you scan. It is somewhat challenging to identify that. Youre relying on your own luck to be assured that youre scanning the right code. Reporter back at sjc airport there is a lowtech backstop to ensure its qr codes are okay to use. We have staff in our terminals and on buses even to check the qr codes to make sure qr codes. That stickers havent been always consider the source. Peeled off or altered and they also get close, inspect the code itself to see if someones tampered with it. Heres another idea. Consider adding Security Software to your phone. Its not a license to scan random qr codes, but it might help block attacks. Finally do what mark did, set up alerts with your bank and credit cards. It will take you to this story to nbcbayarea. Com where you can learn more about protecting your phone. You can also provide us with your news tips. Starting tuesday youre going to be able to get a free covid19 test at the Oakland International airport. Airport is partnering with City Health Urgent Care to offer rapid result to employees and really to anybody, general public. Employees need to show their airport badge. As for the rest of us, we can schedule an appointment online through the city health website. Starting on october 15th, the testing facility can be used by anyone heading to hawaii where new quarantine rules are in effect. That will come in handy. The military flareup between armenia and azerbaijan escalated further as a major city in azerbaijan was hit by missiles. Both countries pointing the finger at the other. The dispute highlighted in yellow as you see on the map. Territory is legally part of i controlled by three decades. Half a world away, armenian and azerbaijanians say it is causing a problem. A prayer vigil in cupertino. Reporter amid the solemn praying at saint Andrew Armenian Church in cupertino, there is anger. Everybody is feeling angry, very concerned. If you talk to anyone here, theyll tell you they havent slept since last monday because the situation is escalating very, very quickly. Reporter for eight Straight Days there has been a military conflict between two former soviet republics. Armenia and azerbaijan. The dispute is over nagornocarabak a region controlled by armenians for decades. Now both military and civilian lives are being lost over land. Im feeling very sad. Every time when i go to church to pray, i have my fears. Reporter many bay area armenians say the conflict is hitting too close to home. With recent vandalism at an Armenian School and a fire at an Armenian Church in San Francisco. While local azerbaijanis say their lives are being threatened, too. They are asking for paying actually for names and address of azerbaijanis. This is threatening, hatred. Reporter both are demanding International Authorities step in. We want peace in our land, in azerbaijan. We want people live together without being an instrument for Foreign Forces like russia. Reporter turkeys role in the conflict was supposed to be the subject between a call for armenians Prime Minister and President Trump before he became ill. In cupertino, lili tan, nbc bay area news. Boy, its going to be different. There wont be jets roaring over San Francisco this year like you see in this video from last year because of the pandemic. Fleet week will be on your computer screen. Yes, the navy is calling it 2020 San Francisco fleet week, the virtual experience. Its going to be a week of Online Events celebrating the partnership between the city and the navy. There will also be special tributes to the bay area first responders. Rob maeda her to step in and talk about improved air today and an improved forecast. The more rain the better im thinking. Yeah, you know, its tough not to be distracted by some of the longer range models which were looking at. Two over my shoulder, both painting a picture of rain. Thats good, going two for two still. And we will continue to be watching this very closely. As we get closer to chances for finding those rain showers likely as we approach friday and saturday. But before we get there, good news. The air quality certainly improved today. Were going to see that continue as we get back into the workweek, except in the north bay. If youre in an area near calistoga, down toward yountville, youll have smoke settle in for the morning. Watch out for that in the north bay valleys. Spare the air alert continues through tuesday. Youll see here in th