NZPHSR - December 2015

1. Editorial

• An outbreak of mumps-like illness

2. Notifiable disease surveillance
Significant increases in 12-monthly notification rate

• Chikungunya fever
• Legionellosis
• Leptospirosis
• Rickettsial disease
• Toxic shellfish poisoning
• VTEC infection
• Yersiniosis

Significant decreases in 12-monthly notification rate

• Acute rheumatic fever
• Campylobacteriosis
• Dengue fever
• Gastroenteritis (acute)
• Giardiasis
• Hepatitis A
• Measles
• Pertussis
• Zika fever

3. Other surveillance reports

• No reports this quarter

4. Outbreak surveillance

• 138 outbreaks (1613 cases) notified in this quarter
• 84 final reports (1361 cases); 54 interim reports (252 cases)
• 16.2 cases per outbreak on average
• 17 hospitalisations, 8 deaths

5. Outbreak case reports

• “Here we go again” A Legionella pneumophila serogroup 1 outbreak in Christchurch
• Clostridium perfringens outbreak linked to eating cooked pork

6. Laboratory surveillance

• Laboratory surveillance of invasive pathogens