diff --git a/src/HowBadIsMyBatch.ipynb b/src/HowBadIsMyBatch.ipynb
index 18515fda151..0c5418b0b62 100644
--- a/src/HowBadIsMyBatch.ipynb
+++ b/src/HowBadIsMyBatch.ipynb
@@ -12,6 +12,7 @@
     "pd.set_option('display.max_rows', 100)\n",
     "pd.set_option('display.max_columns', None)\n",
     "\n",
+    "import os\n",
     "from VAERSFileDownloader import updateVAERSFiles\n",
     "from datetime import datetime\n",
     "from DateProvider import DateProvider\n",
@@ -26,7 +27,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "print(datetime.now().strftime(\"%d.%m.%Y, %H:%M:%S Uhr\"))\n"
+    "print(datetime.now().strftime(\"%d.%m.%Y, %H:%M:%S Uhr\"))"
    ]
   },
   {
@@ -43,36 +44,6 @@
     "print('needsUpdate:', needsUpdate)"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "e673b947",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "def getWorkingDirectory():\n",
-    "    pwd = ! \"pwd\"\n",
-    "    return pwd[0]"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "e313a06c",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "getWorkingDirectory()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "id": "9514f5be",
-   "metadata": {},
-   "source": [
-    "## Download VAERS-Data"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -83,7 +54,7 @@
     "updateVAERSFiles(\n",
     "        needsUpdate = needsUpdate,\n",
     "        years = [2022],\n",
-    "        workingDirectory = getWorkingDirectory())"
+    "        workingDirectory = os.getcwd())"
    ]
   },
   {
diff --git a/src/InternationalVaersCovid19Provider.py b/src/InternationalVaersCovid19Provider.py
index 79e1897cbce..9d18ac0b5aa 100644
--- a/src/InternationalVaersCovid19Provider.py
+++ b/src/InternationalVaersCovid19Provider.py
@@ -1,8 +1,13 @@
 from DataFrameFilter import DataFrameFilter
-from VaersReader import getVaersForYears, getNonDomesticVaers
+import VaersReader
 import pandas as pd
 
+
 def getInternationalVaersCovid19(years):
-    internationalVaers = pd.concat([getVaersForYears(years), getNonDomesticVaers()])
+    internationalVaers = pd.concat(
+        [
+            VaersReader.getVaersForYears(years),
+            VaersReader.getNonDomesticVaers()
+        ])
     internationalVaersCovid19 = DataFrameFilter().filterByCovid19(internationalVaers)
-    return internationalVaersCovid19
\ No newline at end of file
+    return internationalVaersCovid19