贵阳锥体系传导束模型昆明颜面浅层肌肉神经血管模型,天水高178CM 针灸铜人模型,江苏神经元突触及神经纤维结构模型,沈阳动脉与静脉解剖放大,四川远程多机出血训练系统,长沙半身心肺复苏训练模拟人（简易型）,浙江平面狗牙

SAN DIEGO (KGTV) -- Coronavirus cases on the San Diego-based USS Theodore Roosevelt are multiplying quickly. On Thursday, Department of Defense officials announced 23 sailors have now tested positive for COVID-19. Officials say they have mild symptoms, fever and a cough. The aircraft carrier left her San Diego homeport in January for a seven-month deployment with roughly 5,000 sailors are on board. The carrier's last stop was in Vietnam more than two weeks ago. RELATED: New COVID-19 cases found in city where San Diego-based ship is dockedNavy closes San Diego Training Support Command after third coronavirus caseJust two days ago, the Navy announced the first three positive cases on the ship, meaning the number of infected sailors is now nearly eight times as high. The USS Roosevelt is getting ready to pull into Guam on Friday, where the positive cases will be moved off of the ship. The other sailors will be confined to the pier, not allowed to leave into Guam. Navy officials say everyone on the ship will be tested for the virus. 1052

SAN DIEGO (KGTV) - Baseball season is here and there's a way to celebrate without buying a ticket to the Padres game.The East Village Association is hosting its eighth annual Opening Day Block Party Friday and Saturday as the Padres host the Milwaukee Brewers at Petco Park.The free event will take place on J Street between 6th and 10th Avenues in East Village. The block party runs from 2 p.m. through 8 p.m. Friday and noon until 6:30 p.m. Saturday.Fans can enjoy games, food, beer and cocktails.  523

SAN DIEGO (KGTV) — Construction crews have started on about 4.5 miles of bikeways and safety improvements stretching from downtown to Hillcrest.The projects include separated and buffered bikeways on Fourth and Fifth Avenues, safety improvements such as lighting, upgraded landscaping, and improved crosswalks for people with disabilities and pedestrians.In all, the project will cost .2 million and cross from B St. in downtown, through Bankers Hill, and to Washington St. in Hillcrest."This project will make it safer and easier for people to walk and bike along commonly traveled streets to visit local businesses and reach destinations such as Downtown San Diego, Balboa Park, and Hillcrest," said SANDAG Vice Chair and Encinitas Mayor Catherine Blakespear. "San Diegans are walking and biking more during the pandemic and this project will provide safe and convenient options for people to continue to choose active transportation, even when the health crisis is far behind us."The new bikeways are part of the Uptown Bikeways effort proposed in 2012, meant to connect Uptown, Old Town, Mission Valley, Downtown San Diego, North Park, and Balboa Park. SANDAG says community members worried about the potential loss of parking due to the project worked with officials to find solutions, and ultimately were able to provide a surplus of parking.The agency adds that it has modified construction schedules to best minimize its impact on businesses currently using temporary outdoor setups to operate under coronavirus restrictions along Fourth and Fifth Avenues.Construction on the project is expected to be finished in 2022. During construction, nearby residents and businesses can expect intermittent lane closures, parking restrictions, construction noise, and dust. Most work will be completed Monday through Friday, holidays excluded, between 7 a.m. and 5 p.m., and occasionally on Saturdays. 1910

SAN DIEGO (KGTV) — As wildfires continue to burn in California, researchers say they may be adding fuel to another emergency: the pandemic.Parts of the Golden State have been buried in a blanket of smoke for weeks. Wildfire smoke is a mixture of many pollutants, but the majority consists of tiny particulate matter called PM2.5, which can also be produced by cars and power plants.“It’s a threat amplifier,” said Dr. Abisola Olulade of Sharp Rees-Stealy Medical Group.In April, researchers at Harvard found that just a small increase in this kind of air pollution led to an 8% jump in the death rate from COVID-19.Studies have shown that air pollution from these tiny particles can increase the risk of death in older adults from other causes, but the Harvard researchers found the increase from COVID-19 was 20 times larger.Why? The most widely accepted theory is that smoke particles, which can burrow deep inside the lungs and enter the bloodstream, can add a layer of health complications for people already fighting the virus.“People that are already fighting off a COVID-19 infection already have compromised heart and lung function if they have severe illness,” Dr. Olulade said. “So that can increase their susceptibility to the effects of wildfires.”The particles can contribute to more inflammation and potentially lead to blood clotting, she said.“Any chink in the armor, so to speak, is going to really make people have trouble maintaining” the body’s stressful fight against the virus, said Dr. Christian Ramers of Family Health Centers of San Diego.Another theory from early COVID-19 research that hasn’t been peer-reviewed: smoke particles could allow the virus to travel farther and survive longer, potentially allowing it to spread to more people. Both Dr. Ramers and Dr. Olulade said there was less research to support this theory.“What makes the sky look hazy when there’s smoke? It’s particles. So it's conceivable, again this is kind of conjecture, but it's conceivable with more particles in the air then yes the virus can latch onto those particles a bit more,” said Dr. Ramers.Doctors say there’s stronger evidence to suggest that wildfire smoke could help the virus enter a healthy person’s body. Not only does smoke wear down the protective lining of our airways, it stimulates certain receptors in the lungs -- the exact receptors that the spike proteins of the coronavirus use to get inside cells.“The virus binds to those ACE2 receptors, so if you have more of them, it can increase the viral load,” said Dr. Olulade.All kinds of air pollution put us at greater risk from respiratory diseases like coronavirus, not just wildfires. But one thing is for sure: Californians have been exposed to a lot of smoke lately.Since the beginning of the year, wildfires in California have burned more than 3 million acres, according to CAL Fire. That’s an area larger than the entire County of San Diego. 2929

SAN DIEGO (KGTV) -- Caltrans is warning drivers that a portion of northbound SR-125 will close Sunday.According to Caltrans, northbound SR-125 will close from 7 a.m. to 7 p.m. between SR-905 and Birch Road.The north and southbound shoulder bike lane between SR-905 and Birch Road will also close between the same hours.According to Caltrans, the closure is for the testing of new technology, though the agency didn’t specify what technology it will be testing. 468