The International Collating Center, in Newmarket, United Kingdom, and other sources reported the following equine disease outbreaks for the second quarter of 2016*.

In early April, a case of African horse sickness was reported in the Surveillance Zone in the Western Cape of the Republic of South Africa. A total of 20 additional cases of infection with serotype 1 virus were subsequently identified on seven other premises.

Equine influenza was reported by the United Kingdom and the United States. One outbreak involving a limited number of cases was recorded in the United Kingdom. The disease is endemic in the United States; it was confirmed in six states.

Equine herpesvirus-1 and -4 (EHV-1 and EHV-4) related diseases were reported by France, Germany, Ireland, Japan, Korea, Switzerland, the United Kingdom, and the United States. Respiratory disease was diagnosed in France (seven outbreaks, all isolated cases), Germany (nine cases involving eight premises), Ireland (four cases), and the United States (activity recorded in various states).

Abortion due to EHV-1 was confirmed in France (two outbreaks), Germany (five cases), Japan (single cases on three premises), South Korea (one case), Switzerland (two cases in neonatal foals, one co-infected with Actinobacillus equuli), the United Kingdom (three outbreaks), and the United States (three cases).

Neurologic disease caused by EHV-1 was reported in France (two outbreaks) and the United States (four outbreaks). Neuropathogenic or nonneuropathogenic virus strains were involved.

Respiratory disease caused by EHV-4 was recorded by France (14 outbreaks), Germany (nine cases on six premises), and Swit