​Since the last ECDC update on 17 June 2013, 13 new confirmed cases of Middle East respiratory syndrome coronavirus (MERS-CoV) and two deaths have been reported by the Ministry of Health of Saudi Arabia.

​As of 6 August 2013, the Danish, Finnish, Norwegian and Swedish public health institutes reported 106 cases associated with the hepatitis A virus (HAV) infection outbreak affecting their countries since 1 October 2012. Of these, 64 were confirmed and 42 were probable.

​In May 2013, Israel announced the detection of wild poliovirus type 1 (WPV1) in the south of the country (1). As reported until mid-August, during the routine monitoring of sewage samples the virus had been found in 67 sewage samples from 24 sampling sites since February 2013.

​On 14 August 2013 highly pathogenic avian influenza (HPAI) was detected in poultry in Ostellato, Ferrara province, Emilia-Romagna, Italy. Influenza subtype A(H7N7) was confirmed.

​On 14 August 2013 highly pathogenic avian influenza (HPAI) was detected in poultry in Ostellato, Ferrara province, Emilia-Romagna, Italy. Influenza subtype A(H7N7) was confirmed.

​On 1 October, 46 confirmed cases of cholera, including one death, were reported by the Pan American Health Organization (PAHO) in Mexico. Of those, two were identified in the Federal District and 44 in the state of Hidalgo.

​As of 3 October, wild-type poliovirus 1 (WPV1) was still being isolated in wastewater treatment plants across the country with some areas indicating an inconsistent or discontinued detection. However, no new sites in Israel with WPV1 in sewage were detected since the start of the bivalent oral polio vaccine (bOPV) immunisation campaign, according to personal communication from the Ministry of Health in Israel.

​Ten of the 22 acute flaccid paralysis (AFP) cases in the Syrian Arab Republic suspected of being caused by wild poliovirus have been confirmed as wild poliovirus type 1 (WPV1) by the World Health Organization (WHO).

​​Since 5 June, ECDC has published on its website weekly updates on spatial distribution of West Nile fever cases in the European Union and neighbouring countries. Cases reported in the EU were autochthonous human WN fever cases (neuro-invasive and non neuro-invasive), meeting laboratory criteria as per EU case definition (Directive 2008/426/EC) and all reported cases outside the EU.

​On 6 November 2013, Public Health Authorities in French Polynesia reported of an outbreak of sub-febrile and eruptive syndrome due to Zika virus spreading across the archipelago since week 41 of 2013. An outbreak of dengue type 1 and 3 is on-going in the archipelago since February 2013.