Monthly Notifiable Disease Surveillance Report - Aug 2022

Friday 2nd December 2022


Key Notifiable Disease Trends

Campylobacteriosis: There were 542 cases of campylobacteriosis notified in August 2022, compared with 376 cases for the same month in 2021. While the number of campylobacteriosis notifications for August was low in both 2020 and 2021 due to public health measures implemented against COVID-19, the August 2022 total is similar to that seen pre-COVID-19 with 527 notifications in August 2019 and 568 in August 2018.

COVID-19: There were 118,211 cases of COVID-19 notified in August 2022. BA.5 remained the most prevalent Omicron subvariant across New Zealand throughout August. See the Ministry of Health website and ESR’s genomic insights report for more information.

Monkeypox: Two confirmed cases of monkeypox were notified in August 2022, bringing the total number of confirmed monkeypox cases reported in New Zealand since the beginning of a multi-country outbreak to four. Both cases were overseas during the incubation period.

Shigellosis: There were 10 cases of shigellosis notified in August 2022, compared with one case for the same month in 2021. All 10 cases had information on overseas travel recorded and seven were overseas during the incubation period. Four cases had travelled to Fiji, the other three cases had travelled to India, Australia and England.

OUTBREAKS

Respiratory illness: There were five respiratory illness outbreaks reported in August 2022. Four outbreaks were due to influenza-like illness (one was influenza A and one rhinovirus), and one was due to COVID-19. Three outbreaks were in long-term care facilities, one was in an early childcare centre, and one was in a hospital setting.

Salmonellosis

Salmonella Kintambo: Two further cases of Salmonella Kintambo were reported in August 2022, bringing the total in the outbreak associated with sesame-based products to five cases. Sequencing for the five clinical isolates showed the cases were the same sequence type (ST8754) and closely genomically related to a recent European outbreak linked to sesame-based products from Syria.

Salmonella Typhimurium: Twenty-four cases of salmonellosis, with a travel history to Fiji, have been identified as part of a new cluster called Typhimurium_2022_C_12. The cases arrived back in New Zealand between 14 July and 13 August 2022. Airline information was available for 16 cases, and 15 had travelled on the same airline, with most cases having an onset after arriving in NZ.

Note: Click on the document links below to open. These documents are in PDF format. You will need to download the free Adobe Acrobat Reader to view them.

Report:

Monthly Notifiable Disease Surveillance Report - Aug 2022

Tables:

Monthly National Tables - August 2022 (.xlsx)

Monthly DHB Tables - August 2022 (.xlsx)

Monthly Rolling Tables - August 2022 (xlsx)

 

DOWNLOADS

Monthly Notifiable Disease Surveillance Report - Aug 2022

Tables:

Monthly National Tables - August 2022 (.xlsx)

Monthly DHB Tables - August 2022 (.xlsx)

Monthly Rolling Tables - August 2022 (xlsx)

Ph: +64 4 914 0700 Fax: +64 4 914 0770 Email: survqueries@esr.cri.nz