Hideo Sumiyoshi

Title: Hideo Sumiyoshi: Innovator in Japanese Encephalitis Research

Introduction

Hideo Sumiyoshi is a notable inventor based in Branford, CT (US). He has made significant contributions to the field of virology, particularly in the development of vaccines for Japanese encephalitis. His work has implications for public health and the prevention of viral diseases.

Latest Patents

Hideo Sumiyoshi holds a patent for "Infectious Japanese encephalitis virus cDNA clones that produce highly infectious, recombinant JEV particles with diverse virulence properties." This patent describes cDNA clones containing the entire genome of the Japanese encephalitis virus (JEV). These clones have been utilized to create recombinant JEV particles that exhibit varying levels of virulence. Notably, certain viruses maintain the immunogenicity of JEV while lacking the capacity to induce encephalitis. The mutation responsible for this loss of neurovirulence has been pinpointed to a nucleotide substitution in the codon encoding the 138th amino acid of the envelope protein. This results in a change from an acidic amino acid to a basic amino acid. The attenuated viruses featuring this mutation serve as the foundation for a significantly improved, molecularly defined vaccine aimed at preventing Japanese encephalitis in humans.

Career Highlights

Hideo Sumiyoshi is currently employed by the US Government as represented by the Secretary of the Army. His work in this capacity has allowed him to focus on critical research that addresses public health challenges. His innovative approaches have garnered attention in the scientific community.

Collaborations

Hideo Sumiyoshi has collaborated with Charles H. Hoke, contributing to advancements in the understanding and prevention of viral diseases. Their partnership has been instrumental in the development of effective vaccine strategies.

Conclusion

Hideo Sumiyoshi's contributions to the field of virology, particularly through his patent on Japanese encephalitis virus cDNA clones, highlight his role as an innovator in public health. His work continues to pave the way for advancements in vaccine development and disease prevention.