Strengthen the Lab Workforce: Host a FellowYour lab might be the perfect place for a fellow to grow. Learn more. Our Work APHL laboratory fellowship programs prepare scientists for careers in PHL science. These experiential programs offer a competency-based core curriculum.Focus on Fellows 2018-2019 It looks like your browser does not have JavaScript enabled. Please turn on JavaScript and try again. From APHL's Blog It looks like your browser does not have JavaScript enabled. Please turn on JavaScript and try again.