add note about flu and use https links when possible

content/about/_index.md

@@ -32,7 +32,7 @@ Public health authorities (federal, state, local), the healthcare industry, the
 
 ### Delphi's milestones
 
-- Since 2013, we've supported U.S. CDC's Influenza Division in advancing and growing a [scientific community around flu forecasting](https://www.cdc.gov/flu/weekly/flusight/index.html). We've been perennial leaders in forecasting accuracy.
+- Since 2013, we've supported U.S. CDC's Influenza Division in advancing and growing a [scientific community around flu forecasting](https://www.cdc.gov/flu/weekly/flusight/index.html). We've been [perennial leaders in forecasting accuracy](https://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202014-2018%20Results.pdf).
 
 - Since 2016, we've developed the [Delphi Epidata API]({{< apiref "/" >}}), which provides real-time access to epidemiological surveillance data.
 

content/about/news/headless/2016_12.md

@@ -4,4 +4,4 @@ title: Top
 category: accomplishment
 ---
 
-[system took the top spot in the 2015-2016 flu forecasting challenge](https://www.cdc.gov/flu/spotlights/flu-activity-forecasts-2016-2017.htm). ([Results summary](http://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202015-2016%20Results.pdf).)
+[system took the top spot in the 2015-2016 flu forecasting challenge](https://www.cdc.gov/flu/spotlights/flu-activity-forecasts-2016-2017.htm). ([Results summary](https://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202015-2016%20Results.pdf).)

content/about/news/headless/2017_10.md

@@ -7,4 +7,4 @@ category: accomplishment
 We did it again! [Our
 two systems took the top two spots in the 2016-2017 flu forecasting
 challenge (out of 28 submissions).](https://www.cmu.edu/news/stories/archives/2017/september/flu-forecasts.html)
-([Results summary](http://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202016-2017%20Results.pdf).)
+([Results summary](https://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202016-2017%20Results.pdf).)

content/about/news/headless/2018_11.md

@@ -7,4 +7,4 @@ category: accomplishment
 and yet again! Our forecasting systems took the top
 spot each of the three separate flu forecasting challenges of
 2017-2018 (out of up to 30 submissions).
-([Results summary](http://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202017-2018%20Results.pdf).)
+([Results summary](https://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202017-2018%20Results.pdf).)

content/about/publications/index.md

@@ -52,7 +52,7 @@ papers:
   - title: "A proposal for standardized evaluation of epidemiological models"
     image: evaluation.jpg
     authors: Rosenfeld, Grefenstette, Burke
-    link: http://www.cs.cmu.edu/~roni/standardized-evaluation-of-epi-models-rev-09nov2012.pdf
+    link: https://www.cs.cmu.edu/~roni/standardized-evaluation-of-epi-models-rev-09nov2012.pdf
     journal: White paper
     year: 2012
 ---

content/flu/_index.md

@@ -9,7 +9,7 @@ layout: single
 
 ## Activities
 
-We have participated, and [have done very well](http://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202014-2018%20Results.pdf), in all epidemiological forecasting challenges organized by the US government to date:
+We have participated, and [have done very well](https://www.cs.cmu.edu/~roni/CDC%20Flu%20Challenge%202014-2018%20Results.pdf), in all epidemiological forecasting challenges organized by the US government to date:
 
 <!--            : 2013--2014, 2014--2015 (winner),
     <a target="_blank" rel="noopener" href="https://www.cdc.gov/flu/spotlights/flu-activity-forecasts-2016-2017.htm">2015--2016 (winner)</a>
@@ -27,7 +27,7 @@ by the [White House](https://www.whitehouse.gov/) [OSTP](https://www.whitehouse.
 
 ### [Forecasting the Chikungunya invasion of the Americas](https://www.innocentive.com/ar/challenge/9933617")
 
-by [DARPA](http://www.darpa.mil/)
+by [DARPA](https://www.darpa.mil/)
 
 ## Publicly Available Tools
 

content/people/index.md

@@ -198,7 +198,7 @@ people:
   lastName: Ventura
   image: valerie-ventura-500x500-min.jpg
   affiliation: CMU/Stat
-  link: http://www.stat.cmu.edu/~vventura/
+  link: https://www.stat.cmu.edu/~vventura/
   description: is a Professor in the Department of Statistics & Data Science at CMU and a member of Delphi.
   team:
   - core
@@ -208,7 +208,7 @@ people:
   lastName: Wasserman
   image: larry-wasserman-500x500-min.jpg
   affiliation: CMU/Stat
-  link: http://www.stat.cmu.edu/~larry/
+  link: https://www.stat.cmu.edu/~larry/
   description: is a Professor in the Department of Statistics & Data Science at CMU as well as in the Machine Learning Department and is a member of Delphi.
   team:
   - core