OSWEGO â The Oswego County Health Department continues to urge residents to take every precaution in the battle against COVID-19. The plea is especially critical with the ongoing rise in positive cases across the county. Now, in addition to following protection protocols, people can download the free âCOVID Alert NYâ app to their smartphones. âThis app is a valuable tool in the battle against COVID-19,â said Oswego County Public Health Director Jiancheng Huang. âIt is an early warning system that gives users the power to slow the spread of the virus. I strongly encourage people to download it to their phones.â