EWMA – Swine in Minnesota

Duration and time between PRRSV epidemic periods

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

Today the MSHMP team shares the most recent EWMA chart of weekly PRRSV incidence and helps readers understand what it all means.

Chart 4 PRRS EWMA Review

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

In today’s Science Page, the MSHMP team dives into Chart 4, which shows Porcine reproductive and respiratory syndrome virus Exponential Weighted Moving Average.

Seasonality of PEDV incidence in breeding herds during endemic transmission in the U.S.

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

University of Minnesota researchers Mariana Kikuti, Xiaomei Yue, Marcello Melini, Emily Geary, Paulo Fioravante, and Cesar Corzo share information regarding how seasons affect PEDV incidents in breeding herds in this week’s Science Page.

PRRS 2021-2022 Exponentially Weighted Moving Average (EWMA) by State

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

This week we take a look at PRRS EWMA patterns in Iowa, North Carolina, Minnesota, Oklahoma, Nebraska and Illinois, thanks to research done by Mariana Kikuti, Emily Geary, Paulo Fioravante, Marcello Melini, Miranda Medrano, Cesar Corzo.

PRRS 2019-2021 Exponentially Weighted Moving Average by State

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

This week, the MSHMP team shares the 2019-2021 PRRS incidence by state and how it influenced exponentially weighted moving average (EWMA).

Reminder: What is Exponentially Weighted Moving Average?

Keypoints

We continue to observe different EWMA patterns across states.
Iowa, Minnesota and Nebraska are undergoing an epidemic of larger magnitude and duration when compared to the previous year.
Even though fall and winter continue to be the seasons with overall higher incidence, sporadic cases in warmer months were observed throughout the states.