Thomas B. Waltzek
0000-0001-6383-5978

Specialist

associate professor, emerging aquatic animal pathogens & aquatic animal health; research coordinator, Aquatic Animal Health Program; UF College of Veterinary Medicine Department of Infectious Diseases and Immunology; affiliate associate professor, UF/IFAS School of Forest, Fisheries, and Geomatics Sciences; Gainesville, FL

Profile

Publications

Koi Herpesvirus Disease (KHVD)

Kathleen H. Hartman, Roy P.E. Yanong, Deborah B. Pouder, B. Denise Petty, Ruth Francis-Floyd, Allen C. Riggs, and Thomas B. Waltzek

Koi herpesvirus (KHV) is a highly contagious virus that causes significant morbidity and mortality in common carp varieties. Common carp is raised as a foodfish in many countries and has also been selectively bred for the ornamental fish industry where it is known as koi. The first recognized case of KHV occurred in the United Kingdom in 1996. Since then other cases have been confirmed in almost all countries that culture koi and/or common carp with the exception of Australia. This fact sheet is intended to inform veterinarians, biologists, fish producers and hobbyists about KHV disease.

Megalocytivirus Infections in Fish, with Emphasis on Ornamental Species

Roy P. E. Yanong and Thomas B. Waltzek

This document is about megalocytiviruses, a group of fish viruses in the family Iridoviridae, which cause systemic infections in various freshwater and marine fish species1. It details the disease symptoms, diagnostic methods, and management practices for infected fish. The document also highlights the susceptibility of different fish species to these viruses and the importance of biosecurity measures to prevent the spread of infections. Additionally, it discusses the lack of effective treatments and the necessity of good husbandry practices to mitigate the impact of these viruses. First published Dec. 2010.

Tilapia Lake Virus (TiLV): a Globally Emerging Threat to Tilapia Aquaculture

Lowia Al-Hussinee, Kuttichantran Subramaniam, Win Surachetpong, Vsevolod Popov, Kathleen Hartman, Katharine Starzel, Roy Yanong, Craig Watson, Hugh Ferguson, Salvatore Frasca Jr., and Thomas Waltzek

A UF/IFAS numbered peer reviewed Fact Sheet. in support of UF/IFAS Extension program: Aquaculture