Jonna Lorenz

Jonna Lorenz is a freelance journalist with more than 20 years of experience. Her background is in business and health care news, including reporting, editing and research for newspapers and websites.

Articles by Jonna Lorenz

A new hexavalent combination vaccine for diphtheria, tetanus, pertussis, polio, hepatitis B, and Haemophilus influenzae type b won’t be commercially available in the United States before 2021, but the CDC has issued guidance for use of the vaccine in infants.