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Table 2 Alerts during the first 2 years of ICARES

From: ICARES: a real-time automated detection tool for clusters of infectious diseases in the Netherlands

Alert

Syndrome (Health care institution)

Additional public health diagnostics

True cluster

Comment

1

Respiratory tract infection (GP)

No

No

Different causative agents and coding imperfections

2

Infectious hepatitis (GP)

Yes

No

Non-infectious hepatitis

3

Meningoencephalitis (Hospital)

No

Yes

Enterovirus encephalitis

4

Meningoencephalitis (Hospital)

No

No

Two unrelated cases of Listeria in Katwijk

5

Infectious hepatitis (GP)

No

No

Coding imperfections

6

Respiratory tract infection (Hospital and GP)

No

Yes

Long lasting influenza season with high peak incidence

7

Meningoencephalitis (Hospital)

No

No

Coding imperfections/double coding

8

Meningoencephalitis (GP)

No

No

Non-acute illness