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We welcome the use of this surveillance data with the following acknowledgement, New Zealand surveillance data provided by ESR, funded by the Ministry of Health with the cooperation of the diagnostic laboratories. |
The last five years of data is available here. Non-human Salmonella isolates data from 2017 - 2003 can be found in the Archive.
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2023
Year Month (file linked) Summary 2023 November The Enteric Reference Laboratory confirmed 32 non-human Salmonella isolates in November 2023 compared with 44 November 2022. There was a decrease in the number of Canine isolates (12 in 2022 versus 3 in 2023) and Feline isolates (7 in 2022 versus 2 in 2023). There was an increase in the number of Bovine isolates (9 in 2022 versus 22 in 2023).
2023 October The Enteric Reference Laboratory confirmed 42 non-human Salmonella isolates in October 2023 compared with 72 October 2022. There was a decrease in the number of Salmonella Give isolates (20 in 2022 versus 5 in 2023) and Salmonella Typhimurium isolates (23 in 2022 versus 11 in 2023).
2023 September The Enteric Reference Laboratory confirmed 70 non-human Salmonella isolates in September 2023 compared with 110 September 2022. There was a decrease in the number of Salmonella Give isolates (19 in 2022 vs. 5 in 2023) and Salmonella Typhimurium isolates (49 in 2022 versus 20 in 2023).
2023 August The Enteric Reference Laboratory confirmed 90 non-human Salmonella isolates in August 2023 compared with 115 in August 2022. There was an increase in the number of S. Bovismorbificans isolates (8 in 2022 vs 23 in 2023) and S. Brandenburd isolates (6 in 2022 vs 15 in 2023). There was a decrease in the number of Food isolates (17 in 2022 vs 3 in 2023) and Poultry isolates (5 in 2021 vs 0 in 2022).
2023 July The Enteric Reference Laboratory confirmed 38 non-human Salmonella isolates in July 2023 compared with 58 July 2022.There was a decrease in the number of Bovine isolates (22 in 2022 vs 16 in 2023), and Poultry isolates (15 in 2022 vs 2 in 2023).
2023 June The Enteric Reference Laboratory confirmed 42 non-human Salmonella isolates in June 2023 compared with 47 June 2022. There was a decrease in the number Poultry isolates (15 in 2022 versus 2 in 2023).There was an increase in the number S. Hindmarsh isolates (2 in 2022 versus 7 in 2023).
2023 May The Enteric Reference Laboratory confirmed 64 non-human Salmonella isolates in May 2023 compared with 72 May 2022.There was an increase in the number of Ovine isolates (4 in 2022 versus 21 in 2023).There was a decrease in the number of Poultry isolates (23 in 2022 versus 4 in 2023). 2023 April The Enteric Reference Laboratory confirmed 60 non-human Salmonella isolates in April 2023 compared with 57 April 2022.There was a decrease in the number of Poultry isolates (14 in 2022 versus 3 in 2023) There was an increase in the number of S. Give isolates (3 in 2022 versus 17 in 2023) 2023 March The Enteric Reference Laboratory confirmed 65 non-human Salmonella isolates in March 2023 compared with 93 March 2022.There was a decrease in the number of Poultry isolates (72 in 2022 versus 6 in 2023) There was an increase in the number of Bovine isolates (4 in 2022 versus 21 in 2023) and Ovine isolates (2 in 2022 versus 12 in 2023). 2023 February The Enteric Reference Laboratory confirmed 63 non-human Salmonella isolates in February 2023 compared with 55 in February 2022.There was an increase in the number of Avian isolates (2 in 2022 versus 11 in 2023) and Ovine isolates (2 in 2022 versus 11 in 2023). There was a decrease in the number of Poultry isolates (26 in 2022 versus 17 in 2023) and Salmonella Give isolates (11 in 2022 versus 1 in 2023). 2023 January The Enteric Reference Laboratory confirmed 42 non-human Salmonella isolates in January 2023 compared with 36 in January 2022.There was an increase in the number of S. Bovismorbificans (1 in 2022 versus 6 in 2023) and S. Hindmarsh (1 in 2022 versus 7 in 2023) -
2022
2022 - Annual summary of non-human salmonella isolates
The Enteric Reference Laboratory confirmed 785 non-human Salmonella isolates in 2022 compared with 1015 in 2021.
There was a decrease in the number of:
- S. Bovismorbificans (127 in 2021 vs. 100 in 2022)
- S. Brandenburg (89 in 2021 vs. 23 in 2022);
- S. Enteritidis (188 in 2021 vs. 101 in 2022);
- S. Mbandaka (39 in 2021 vs. 19 in 2022)
There was an increase in the number of:
- S. Agona (7 in 2021 vs. 30 in 2022);
- S. Give (88 in 2021 vs. 102 in 2022);
- S. Livingstone (1 in 2021 vs. 24 in 2022)
Monthly summaries:
Year
Month (file linked)
Summary
2022
The Enteric Reference Laboratory confirmed 26 non-human Salmonella isolates in December 2022 compared with 55 December 2021.
There was a decrease in the number of Poultry isolates (34 in 2021 versus 8 in 2022).
2022
The Enteric Reference Laboratory confirmed 44 non-human Salmonella isolates in November 2022 compared with 76 November 2021.
There was a decrease in the number of Bovine isolates (20 in 2021 versus 9 in 2022) and Poultry isolates (36 in 2021 versus 7 in 2022).
There was an increase in the number of Canine isolates (9 in 2021 versus 12 in 2022).
2022
The Enteric Reference Laboratory confirmed 72 non-human Salmonella isolates in October 2022 compared with 145 October 2021.
There was a decrease in the number of Bovine isolates (55 in 2021 versus 39 in 2022) and Poultry isolates (79 in 2021 versus 20 in 2022).
2022
The Enteric Reference Laboratory confirmed 110 non-human Salmonella isolates in September 2022 compared with 133 September 2021.
There was a decrease in the number of Salmonella Bovismorbificans isolates (30 in 2021 vs. 19 in 2022) and Salmonella Brandenburg isolates (29 in 2021 versus 5 in 2022).
There was an increase in the number of Salmonella Give isolates (7 in 2021 vs. 19 in 2022)2022
The Enteric Reference Laboratory confirmed 115 non-human Salmonella isolates in August 202 compared with 205 in August 2021.
There was a decrease in the number of S. Bovismorbificans isolates (25 in 2021 vs 8 in 2022), S. Brandenburg isolates (31 in 2021 vs 6 in 2022), S. Give isolates (16 in 2021 vs 10 in 2022), S. Infantis isolates (10 in 2021 vs 0 in 2022) and S. Thompson isolates (33 in 2021 vs 0 in 2022).2022
The Enteric Reference Laboratory confirmed 58 non-human Salmonella isolates in July 2022 compared with 105 July 2021.
There was a decrease in the number of S. Typhimurium isolates (38 in 2021 vs 14 in 2022), S. Bovismorbificans isolates (11 in 2021 vs 8 in 2022), S. Brandenburg isolates (16 in 2021 vs 2 in 2022) and Poultry isolates (51 in 2021 vs 14 in 2022).2022
The Enteric Reference Laboratory confirmed 47 non-human Salmonella isolates in June 2022 compared with 72 June 2021.
There was a decrease in the number of S. Enteritidis isolates (20 in 2021 versus 1 in 2022) and in the number of Poultry isolates (38 in 2021 versus 15 in 2022)2022
The Enteric Reference Laboratory confirmed 72 non-human Salmonella isolates in May 2022 compared with 68 May 2021.
There was a decrease in the number of S. Enteritidis isolates (11 in 2021 versus 5 in 2022) and in the number of Bovine isolates (34 in 2021 versus 21 in 2022)
Extra testing associated with the MPI Emergency Control Scheme – Managing Salmonella Enteritidis in Commercial Chicken Flocks - that came into effect 6th October 2021 has resulted in an increase in poultry isolate referrals.2022
The Enteric Reference Laboratory confirmed 57 non-human Salmonella isolates in April 2022 compared with 66 April 2021.
There was a decrease in the number of S. Typhimurium isolates (27 in 2021 versus 16 in 2022)
There was an increase in the number of S. Bovismorbificans isolates (5 in 2021 versus 14 in 2022)
Extra testing associated with the MPI Emergency Control Scheme – Managing Salmonella Enteritidis in Commercial Chicken Flocks that came into effect 6th October 2021 has resulted in an increase in poultry isolate referrals.2022
The Enteric Reference Laboratory confirmed 93 non-human Salmonella isolates in March 2022 compared with 41 March 2021.
There was an increase in the number of Poultry isolates (9 in 2021 versus 72 in 2022).
Extra testing associated with the MPI Emergency Control Scheme – Managing Salmonella Enteritidis in Commercial Chicken Flocks that came into effect 6th October 2021 has resulted in an increase in poultry isolate referrals.
In accordance with the Emergency Control Scheme for managing Salmonella Enteritidis in commercial chicken flocks, a number of isolates were received and stored without further typing. While they were received by ESR in March 2022 they were not all collected within this time frame, including 33 Salmonella Enteritidis isolates collected in 2021.2022
The Enteric Reference Laboratory confirmed 55 non-human Salmonella isolates in February 2022 compared with 24 February 2021.
There was an increase in the number of Poultry isolates (3 in 2021 versus 26 in 2022).
Extra testing associated with the MPI Emergency Control Scheme – Managing Salmonella Enteritidis in Commercial Chicken Flocks that came into effect 6th October 2021 has resulted in an increase in poultry isolate referrals.2022
The Enteric Reference Laboratory confirmed 36 non-human Salmonella isolates in January 2022 compared with 24 January 2021.
There was an increase in the number of Poultry isolates (0 in 2021 versus 12 in 2022).
Extra testing associated with the MPI Emergency Control Scheme – Managing Salmonella Enteritidis in Commercial Chicken Flocks that came into effect 6th October 2021 has resulted in an increase in poultry isolate referrals. -
2021
2021 Annual summary - non-human Salmonella isolates
2021 Non-Human Salmonella monthly isolates
The Enteric Reference Laboratory confirmed 1015 non-human Salmonella isolates in 2021 compared with 833 in 2020.
There was a decrease in the number of:
- S. Bovismorbificans (247 in 2020 vs. 127 in 2021)
There was an increase in the number of:
- S. Enteritidis (5 in 2020 vs. 192 in 2021);
- S. Give (78 in 2020 vs. 88 in 2021);
- S. Hindmarsh (8 in 2020 vs. 23 in 2021);
- S. Infantis (3 in 2020 vs. 17 in 2021);
- S. Mbandaka (7 in 2020 vs. 39 in 2021);
- S. Thompson (1 in 2020 vs. 46 in 2021)
An outbreak of S. Enteritidis in poultry flocks, and MPI investigation followed by extra testing associated with the MPI Emergency Control Scheme – Managing Salmonella Enteritidis in Commercial Chicken Flocks that came into effect 6th October 2021 has resulted in an increase in poultry isolate referrals.
See below more monthly summaries for 2021:
Year
Month (file linked)
Summary
2021
The Enteric Reference Laboratory confirmed 55 non-human Salmonella isolates in December 2021 compared with 20 December 2020.
2021
The Enteric Reference Laboratory confirmed 76 non-human Salmonella isolates in November 2021 compared with 42 November 2020.
There was a decrease in the number of Bovine isolates (31 in 2020 versus 20 in 2021)
There was an increase in the number of Poultry isolates (4 in 2020 versus 34 in 2021)
Extra testing associated with the MPI Emergency Control Scheme – Managing Salmonella Enteritidis in Commercial Chicken Flocks that came into effect 6th October 2021 has resulted in an increase in poultry isolate referrals.2021
The Enteric Reference Laboratory confirmed 145 non-human Salmonella isolates in October 2021 compared with 82 October 2020.
There was a decrease in the number of Bovine isolates (69 in 2020 versus 55 in 2021)
There was an increase in the number of Poultry isolates (1 in 2020 versus 79 in 2021)
Extra testing associated with the MPI Emergency Control Scheme – Managing Salmonella Enteritidis in Commercial Chicken Flocks that came into effect 6th October 2021 has resulted in an increase in poultry isolate referrals.2021
The Enteric Reference Laboratory confirmed 133 non-human Salmonella isolates in September 2021 compared with 204 in September 2020.
There was a decrease in the number of Salmonella Bovismorbificans isolates (82 in 2020 versus 30 in 2021) and Salmonella Give isolates (14 in 2020 versus 7 in 2021).
2021
The Enteric Reference Laboratory confirmed 205 non-human Salmonella isolates in August 2021 compared with 184 in August 2020.
There was a decrease in the number of S. Bovismorbificans isolates (25 in 2021 vs 56 in 2020) and S. Typhimurium isolates (59 in 2021 vs 75 in 2020).
There was an increase S. Brandenburg isolates (31 in 2021 vs 27 in 2020), S. Thompson isolates (33 in 2021 vs 0 in 2020) and S. Infantis isolates (10 in 2021 vs 0 in 2020).
There has been an increase in poultry isolates due to surveillance associated with an outbreak of S. Enteritidis ST11 2019_C_01 in poultry flocks, and MPI investigation.
2021
The Enteric Reference Laboratory confirmed 105 non-human Salmonella isolates in July 2021 compared with 83 in July 2020.
There was a decrease in the number of S. Typhimurium isolates (38 in 2021 vs 44 in 2020).
There was an increase in the number of S. Bovismorbificans isolates (8 in 2020 vs 11 in 2021), S. Brandenburg isolates (11 in 2020 vs 16 in 2021), S. Mbandaka isolates (1 in 2020 vs 12 in 2021) and S. Thompson isolates (0 in 2020 vs 10 in 2021).
There has been an increase in poultry isolates due to surveillance associated with an outbreak of S. Enteritidis ST11 2019_C_01 in poultry flocks, and MPI investigation.
2021
The Enteric Reference Laboratory confirmed 72 non-human Salmonella isolates in June 2021.
2021
The Enteric Reference Laboratory confirmed 68 non-human Salmonella isolates in May 2021.
2021
The Enteric Reference Laboratory confirmed 66 non-human Salmonella isolates in April 2021.
2021
The Enteric Reference Laboratory confirmed 41 non-human Salmonella isolates in March 2021.
2021
The Enteric Reference Laboratory confirmed 24 non-human Salmonella isolates in February 2021
2021
The Enteric Reference Laboratory confirmed 24 non-human Salmonella isolates in January 2021.
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2020
2020 Annual summary - non-human Salmonella isolates
2020 Non-human Salmonella monthly isolates
The Enteric Reference Laboratory confirmed 833 non-human Salmonella isolates in 2020 compared with 926 in 2019.
There was a decrease in the number of:- S. Bovismorbificans (309 in 2019 vs. 247 in 2020);
- S. Brandenburg (133 in 2019 vs. 91 in 2020);
- S. Hindmarsh (28 in 2019 vs. 8 in 2020);
- S. Mbandaka (16 in 2019 vs. 7 in 2020);
- S. Saintpaul (14 in 2019 vs. 8 in 2020);
There was an increase in the number of:
- S. Give (12 in 2019 vs. 78 in 2020);
- S. Typhimurium (320 in 2019 vs. 336 in 2020);
No phage typing was undertaken in 2020. When requested Typhimurium and Enteritidis isolates were instead analysed using whole genome sequencing (WGS) and individual reports only showed the serotype and the Achtman 7-gene ST type – which does not discriminate to a fine level within a serotype. Subsequent to the introduction of WGS, Salmonella Subsp. (I) ser. 4,5,12 : i : - is being reported as monophasic Salmonella Typhimurium.
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2019
2019 Annual summary - non-human Salmonella isolates
2019 Non-human Salmonella monthly isolates
The Enteric Reference Laboratory confirmed 926 non-human Salmonella isolates in 2019 compared with 848 in 2018.
There was a decrease in the number of:
- S. Agona isolates (18 in 2018 vs. 9 in 2019);
- S. Ruiru isolates (16 in 2018 vs. 4 in 2019);
- S. Stanley Meal isolates (14 in 2018 vs. 1 in 2019);
- S. Typhimurium phage type 42 (18 in 2018 vs. 4 in 2019);
- S. Typhimurium phage type 101 (62 in 2018 vs. 47 in 2019);
There was an increase in the number of:
- S. Typhimurium phage type 108/170 (3 in 2018 vs. 26 in 2019);
- S. Typhimurium phage type 23 (19 in 2018 vs. 27 in 2019);
- S. Brandenburg isolates (106 in 2018 vs. 133 in 2019);
From 1st November 2019, all phage typing ceased. From this time, serotypes that were historically phage typed – Typhimurium and Enteritidis have all been fine typed using whole genome sequencing upon request.
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2018
2018 Annual summary - non-human Salmonella isolates
2018 Non-Human Salmonella monthly isolates
The Enteric Reference Laboratory confirmed 848 non-human Salmonella isolates in 2018 compared with 972 in 2017.
There was a decrease in the number of:
- Bovine isolates (615 in 2018 vs. 700 in 2017);
- Food isolates (16 in 2018 vs. 30 in 2017);
- Meat/Bone Meal isolates (5 in 2018 vs. 36 in 2017);
- S. Brandenburg isolates (106 in 2018 vs. 137 in 2017);
- S. Infantis isolates (8 in 2018 vs. 26 in 2017);
- S. Typhimurium phage type 56 variant isolates (36 in 2018 vs. 59 in 2017);
- S. Typhimurium phage type 101 isolates (62 in 2016 vs. 92 in 2017);
There was an increase in the number of:
- S. Typhimurium phage type 42 isolates (18 in 2018 vs. 8 in 2017);
- S. Typhimurium phage type 135 isolates (25 in 2018 vs. 11 in 2017);