diff --git a/src/viralhostrange/test_data/duplicated_host.xlsx b/src/viralhostrange/test_data/duplicated_host.xlsx
new file mode 100644
index 0000000000000000000000000000000000000000..827987ba34d96b69d851994209003f1b37585307
Binary files /dev/null and b/src/viralhostrange/test_data/duplicated_host.xlsx differ
diff --git a/src/viralhostrange/test_data/duplicated_host.xlsx.json b/src/viralhostrange/test_data/duplicated_host.xlsx.json
new file mode 100644
index 0000000000000000000000000000000000000000..96d5ae5e25ac31a79b1eb16f94c0037a7b03e2ed
--- /dev/null
+++ b/src/viralhostrange/test_data/duplicated_host.xlsx.json
@@ -0,0 +1,17 @@
+{
+  "C1": {
+    "r1": "0",
+    "r2": "0",
+    "r3": "0"
+  },
+  "C2": {
+    "r1": "1",
+    "r2": "1",
+    "r3": "2"
+  },
+  "C4": {
+    "r1": "2",
+    "r2": "0",
+    "r3": "0"
+  }
+}
\ No newline at end of file
diff --git a/src/viralhostrange/test_data/duplicated_virus.xlsx b/src/viralhostrange/test_data/duplicated_virus.xlsx
new file mode 100644
index 0000000000000000000000000000000000000000..6944e1e12d018e8259c24849936452ba3f84a0c0
Binary files /dev/null and b/src/viralhostrange/test_data/duplicated_virus.xlsx differ
diff --git a/src/viralhostrange/test_data/duplicated_virus.xlsx.json b/src/viralhostrange/test_data/duplicated_virus.xlsx.json
new file mode 100644
index 0000000000000000000000000000000000000000..db4d26e6baed393f9502c864597fa2301f21886e
--- /dev/null
+++ b/src/viralhostrange/test_data/duplicated_virus.xlsx.json
@@ -0,0 +1,18 @@
+{
+  "C1": {
+    "r1": "0",
+    "r2": "0"
+  },
+  "C2": {
+    "r1": "1",
+    "r2": "1"
+  },
+  "C3": {
+    "r1": "0",
+    "r2": "2"
+  },
+  "C4": {
+    "r1": "2",
+    "r2": "0"
+  }
+}
\ No newline at end of file