diff --git a/.eslintcache b/.eslintcache
deleted file mode 100644
index d837591..0000000
--- a/.eslintcache
+++ /dev/null
@@ -1 +0,0 @@
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1, mdy[1]);\n};\n\nexport const numberWithCommas = (x) => {\n  return x.toString().replace(/\\B(?=(\\d{3})+(?!\\d))/g, \",\");\n};\n",["58","59"],"/Users/griggs/Projects/timetoherd/src/components/map-chart/map-chart.js",[],"/Users/griggs/Projects/timetoherd/src/shared/data-factory.js",[],"/Users/griggs/Projects/timetoherd/src/components/country-dropdown/country-dropdown.js",[],"/Users/griggs/Projects/timetoherd/src/components/countries-table/countries-table.js",[],"/Users/griggs/Projects/timetoherd/src/components/methodology/methodology.js",["60","61","62","63"],"/Users/griggs/Projects/timetoherd/src/components/supporters/supporters.js",["64","65","66","67","68"],"/Users/griggs/Projects/timetoherd/src/components/social-sharing/social-sharing-button.js",[],"/Users/griggs/Projects/timetoherd/src/components/time-to-herd/time-to-herd.jsx",[],{"ruleId":"69","replacedBy":"70"},{"ruleId":"71","replacedBy":"72"},{"ruleId":"73","severity":1,"message":"74","line":198,"column":29,"nodeType":"75","messageId":"76","endLine":198,"endColumn":50},{"ruleId":"77","severity":1,"message":"78","line":226,"column":17,"nodeType":"79","endLine":230,"endColumn":18},{"ruleId":"80","severity":1,"message":"81","line":1,"column":8,"nodeType":"82","messageId":"83","endLine":1,"endColumn":13},{"ruleId":"69","replacedBy":"84"},{"ruleId":"71","replacedBy":"85"},{"ruleId":"77","severity":1,"message":"78","line":15,"column":13,"nodeType":"79","endLine":18,"endColumn":14},{"ruleId":"77","severity":1,"message":"78","line":62,"column":13,"nodeType":"79","endLine":65,"endColumn":14},{"ruleId":"77","severity":1,"message":"78","line":95,"column":13,"nodeType":"79","endLine":98,"endColumn":14},{"ruleId":"77","severity":1,"message":"78","line":107,"column":13,"nodeType":"79","endLine":107,"endColumn":81},{"ruleId":"77","severity":1,"message":"78","line":12,"column":13,"nodeType":"79","endLine":16,"endColumn":14},{"ruleId":"77","severity":1,"message":"78","line":21,"column":13,"nodeType":"79","endLine":21,"endColumn":58},{"ruleId":"77","severity":1,"message":"78","line":33,"column":13,"nodeType":"79","endLine":33,"endColumn":67},{"ruleId":"77","severity":1,"message":"78","line":42,"column":13,"nodeType":"79","endLine":46,"endColumn":14},{"ruleId":"77","severity":1,"message":"78","line":54,"column":13,"nodeType":"79","endLine":58,"endColumn":14},"no-native-reassign",["86"],"no-negated-in-lhs",["87"],"use-isnan","Use the isNaN function to compare with NaN.","BinaryExpression","comparisonWithNaN","react/jsx-no-target-blank","Using target=\"_blank\" without rel=\"noreferrer\" is a security risk: see https://html.spec.whatwg.org/multipage/links.html#link-type-noopener","JSXOpeningElement","no-unused-vars","'React' is defined but never used.","Identifier","unusedVar",["86"],["87"],"no-global-assign","no-unsafe-negation"]
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 4d29575..d7b8f1b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,5 @@
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+.eslintcache
diff --git a/src/App.js b/src/App.js
index 28d46e3..cbd1cf9 100644
--- a/src/App.js
+++ b/src/App.js
@@ -47,7 +47,6 @@ export default function App() {
       "https://raw.githubusercontent.com/owid/covid-19-data/master/public/data/vaccinations/vaccinations.csv",
       {
         complete: (results) => {
-          console.log(results.data);
           return setAllVaccineData(results.data);
         },
       }
@@ -118,7 +117,7 @@ export default function App() {
                     />
                   </span>
                   <span className="time-to-heard-unit">
-                    &nbsp;days{" "}
+                    {" "}days{" "}
                     <ExclamationCircleOutlined
                       data-tip="Days = [(Population * 0.7) - (Vaccine Doses Delivered * 0.5)] / (Average Daily Vaccine Doses Given * 0.5) "
                       style={{
@@ -129,7 +128,7 @@ export default function App() {
                     />
                   </span>
                 </div>
-                <p className="subheader">
+                <div className="subheader">
                   until <h1 className="dummy-h1">herd immunity to Covid-19</h1>{" "}
                   is reached through vaccinations in{" "}
                   <span className="selected-country-text">
@@ -138,7 +137,7 @@ export default function App() {
                       setSelectedCountry={setSelectedCountry}
                     />
                   </span>
-                </p>
+                </div>
                 <span className="asterisk">
                   *at current daily vaccination rates
                 </span>
@@ -195,7 +194,7 @@ export default function App() {
                         value={herdImmunityThresholdPercentage}
                         onChange={(valueAsNumber) => {
                           if (
-                            valueAsNumber === NaN ||
+                            isNaN(valueAsNumber) ||
                             valueAsNumber > 95 ||
                             valueAsNumber < 50
                           ) {
@@ -224,7 +223,7 @@ export default function App() {
                   selectedCountry={selectedCountry}
                 />
                 <span className="footer-link-container">
-                  Supported by &nbsp;
+                  Supported by {" "}
                   <a
                     className="footer-link"
                     target="_blank"
diff --git a/src/components/map-chart/map-chart.js b/src/components/map-chart/map-chart.js
index 7ac1674..c6fddd2 100644
--- a/src/components/map-chart/map-chart.js
+++ b/src/components/map-chart/map-chart.js
@@ -39,8 +39,8 @@ export const MapChart = ({
     <>
       <ComposableMap
         data-tip=""
-        width="1150"
-        height="800"
+        width={1150}
+        height={800}
         projectionConfig={{ scale: 260 }}
       >
         <ZoomableGroup>
diff --git a/src/components/time-to-herd/time-to-herd.jsx b/src/components/time-to-herd/time-to-herd.jsx
index 86d7c6a..378e407 100644
--- a/src/components/time-to-herd/time-to-herd.jsx
+++ b/src/components/time-to-herd/time-to-herd.jsx
@@ -98,7 +98,6 @@ export const TimeToHerdCount = ({
     vaccineDosesDelivered,
     dailyVaccinationRate
   ) => {
-    console.log("threshold " + herdImmunnityVaccinationThreshold);
     let daysRounded = Math.round(
       (herdImmunnityVaccinationThreshold - vaccineDosesDelivered) /
         dailyVaccinationRate