Abstract
During last two decades of the 19th century diphtheria was the leading cause of death of toddlers in the industrialized world, in some cities killing more than a thousand in a single year. In contrast, since 1980 fewer than 100 cases have been reported in the entire United States.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.