1. U.S. Geological Survey, National Wildlife Health Center, Honolulu Field Station, Honolulu, Hawaii, USA
2. Biological EM Facility, University of Hawaii, Honolulu, Hawaii, USA
3. NOAA, National Marine Fisheries Service, Pacific Islands Fisheries Science Center, Honolulu, Hawaii, USA
4. Institute of Virology, University of Zurich, Zurich, Switzerland