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Communicable Disease Surveillance |
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Surveillance Alerts are generated when Toronto Public Health's communicable disease surveillance team identifies global or local communicable disease news items and activities of relevance to our public health community. These alerts summarize news that needs to be shared in a timely and immediate manner as the alerts are meant to increase awareness of emerging or potential communicable disease concerns. Occasionally updates to the information shared in the alerts for ongoing situations are also developed and shared with our public health partners. These are also posted below with "Update" in the title.
Please note the information contained in these alerts is only accurate and reflects what was known at the time they were issued. More current information can be acquired by contacting the Communicable Disease Surveillance Unit (CDSU).
Subscribe to Surveillance Alerts
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Active Surveillance Alerts
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| There are no active Surveillance Alerts. |
| Previous Surveillance Alerts |
| 2013 |
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March 15, 2013
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Additional Measles Cases in Toronto (PDF)
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March 5, 2013
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Measles case in Toronto (PDF)
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| 2012 |
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December 19, 2012
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Influenza Activity in Toronto (PDF)
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October 25, 2012
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2012-2013 Influenza Season – first outbreak in Toronto (PDF)
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August 2, 2012
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West Nile Virus Risk High (PDF)
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May 8, 2012
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Health Warning: Wash and cook fiddleheads to prevent illness (PDF)
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April 19, 2012
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Suspect Cases of Botulism in Peel Region (PDF)
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March 2, 2012
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Increased Salmonella activity in Toronto (PDF)
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| 2011 |
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November 28, 2011
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2011-2012 Influenza Season - Confirmed cases in Toronto (PDF)
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| September 2, 2011 |
First confirmed Human West Nile Virus case in Toronto (PDF) |
| August 5, 2011 |
Mumps Outbreak in Toronto - Update (PDF) |
| July 26, 2011 |
Mumps Outbreak in Toronto (PDF) |
| June 8, 2011 |
Measles update (PDF) |
| June 3, 2011 |
E.coli 0104:H4 in Germany (PDF) |
| May 11, 2011 |
Measles case in Toronto (PDF) |
| April 18, 2011 |
C. sakazakii meningitis in infants - U.S. (PDF) |
| March 30, 2011 |
Influenza B and myositis in children (PDF) |
| March 15, 2011 |
HAV and VTEC clusters (PDF) |
| March 11, 2011 |
E. coli O157:H7 cluster - Toronto (PDF) |
| January 26, 2011 |
Hepatitis A identified in restaurant employee (PDF) |
| January 5, 2011 |
Update - Influenza activity in Toronto (PDF) |
| 2010 |
| November 8, 2010 |
Toronto measles case (PDF) |
| October 1, 2010 |
Influenza A (H3) outbreak in a long-term care home (PDF) |
| March 16, 2010 |
Listeriosis investigation (PDF) |
| 2009 |
| December 31, 2009 |
Shigella cases (PDF) |
| December 15, 2009 |
Mumps activity (PDF) |
| October 5, 2009 |
Update - pH1N1 influenza (PDF) |
| July 31, 2009 |
Update - Novel influenza A (H1N1) (PDF) |
| April 22, 2009 |
Severe respiratory illness in Mexico (PDF) |
| 2008 |
| December 10, 2008 |
Argranulocytosis (PDF) |
| October 8, 2008 |
Influenza (PDF)) |
| September 2, 2008 |
Legionellosis (PDF) |
| August 21, 2008 |
Listeriosis (PDF) |
| August 19, 2008 |
Listeriosis (PDF) |
| August 2, 2008 |
E.coli 0157 (PDF) |
| July 16, 2008 |
Measles (PDF) |
| May 8, 2008 |
Measles (PDF) |
| April 8, 2008 |
Measles (PDF) |
| April 4, 2008 |
Measles (PDF) |
| March 20, 2008 |
Measles (PDF) |
| 2007 |
| December 21, 2007 |
Avian influenza (PDF) |
| November 5, 2007 |
Influenza (PDF) |
| July 11, 2007 |
E.coli O157:H7 (PDF) |
| June 11, 2007 |
Measles (PDF) |
| May 9, 2007 |
Mumps (PDF) |
| April 19, 2007 |
Mumps (PDF) |
| 2006 |
| December 22, 2006 |
Streptococcus pneumoniae (PDF) |
| November 30, 2006 |
Botulism (PDF) |
| October 26, 2006 |
Hepatitis (PDF) |
| October 17, 2006 |
Influenza (PDF) |
| October 05, 2006 |
Botulism (PDF) |
| April 18, 2006 |
Mumps (PDF) |
| February 24, 2006 |
Measles (PDF) |
| February 22, 2006 |
Measles (PDF) |
Last updated May 2013
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