Update: Influenza Activity — United States, September 30, 2018–February 2, 2019 / Lenee Blanton, MPH; Vivien G. Dugan, PhD; Anwar Isa Abd Elal; et al.— Interim Estimates of 2018–19 Seasonal Influenza Vaccine Effectiveness — United States, February 2019 / Joshua D. Doyle, MD, PhD; Jessie R. Chung, MPH; Sara S. Kim, MPH; et al. — Days’ Supply of Initial Opioid Analgesic Prescriptions and Additional Fills for Acute Pain Conditions Treated in the Primary Care Setting — United States, 2014 / Mallika L. Mundkur, MD; Jessica M. Franklin, PhD; Younathan Abdia, PhD; et al. — Increased Methamphetamine, Injection Drug, and Heroin Use Among Women and Heterosexual Men with Primary and Secondary Syphilis — United States, 2013–2017 / Sarah E. Kidd, MD; Jeremy A. Grey, PhD; Elizabeth A. Torrone, PhD; et al. —Transmission Patterns in a Low HIV-Morbidity State — Wisconsin, 2014–2017 / Katarina M. Grande, MPH; Casey L. Schumann, MS; M. Cheryl Bañez Ocfemia, MPH; et al — Recommendations of the Advisory Committee on Immunization Practices for Use of Hepatitis A Vaccine for Persons Experiencing Homelessness / Mona Doshani, MD; Mark Weng, MD; Kelly L. Moore, MD; et al. — Vital Signs: Tobacco Product Use Among Middle and High School Students — United States, 2011–2018 / Andrea S. Gentzke, PhD; MeLisa Creamer, PhD; Karen A. Cullen, PhD; et al. — Notes from the Field: Assessment of State-Level Influenza Season Severity — Minnesota and Utah, 2017–18 Influenza Season / Michelle M. Hughes, PhD; Joshua D. Doyle MD, PhD; Keegan McCaffrey; et al. — QuickStats: Death Rates for Motor Vehicle Traffic Injury, by Age Group — National Vital Statistics System, United States, 2015 and 2017.

Morbidity and Mortality Weekly Report (MMWR)