​​MDH FluWatch​

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Welcome to the influenza surveillance reporting website, brought to you by the Center for Infectious Disease Surveillance and Outbreak Response at the Maryland Department of Health (MDH).

• Click Here to View Reports of Two New Variant Influenza (Flu) Virus Infections
  
• Click Here to View Flu Vaccine Recommendations for the 2021-2022 Flu Season​​
  
• Click Here to View Frequently Asked Influenza (Flu) Questions: 2021-2022 Season​
  
• Click Here to View Guidance on Administering Flu Vaccines During the COVID-19 Pandemic ​
  
• ​Click Here to View the Actions to Stop the Spread of Flu and Other Respiratory Illnesses​​​

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CURRENT WEEK INFLUENZA ACTIVITY SUMMARY

Click here to view the Influenza Summary and Data

​INFLUENZA SURVEILLANCE INDICATORS

ILI ACTIVITY:

One indicator we look at is the proportion of visits to sentinel providers for ILI. We compare these proportions to baseline numbers and then categorize ILI activity levels as minimal, low, moderate, high, or very high. 

 

PREDOMINANT INFLUENZA STRAIN:

A third indicator we look at is the predominant strain of influenza circulating in Maryland.  This is important because different strains have different implications for the community.  For example, a 'novel' or 'variant' strain will not have a vaccine available.  There are also some strains of influenza that have developed resistance to antiviral medication.  And there are some strains that will not match the strains in the seasonal flu vaccine.  Knowing what is circulating​ is important in planning and responding to influenza outbreaks.  Refer to the weekly report for a full breakdown of the PCR test results reported.​

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PREVIOUS SEASON SUMMARIES 

​​Season	​File
2018-2019	​PDF
2017-2018	​PDF
2016-2017	​PD​F​​
2015-2016	​PDF
​2014-2015	​PDF
​2013-2014	PDF​
​2012-2013	​PDF
​2011-2012	​PDF

 

 

 

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