diff --git a/homeassistant/components/flunearyou/sensor.py b/homeassistant/components/flunearyou/sensor.py
index 72c0a7b1118..1a7aba5966b 100644
--- a/homeassistant/components/flunearyou/sensor.py
+++ b/homeassistant/components/flunearyou/sensor.py
@@ -1,6 +1,9 @@
 """Support for user- and CDC-based flu info sensors from Flu Near You."""
 from __future__ import annotations
 
+from collections.abc import Mapping
+from typing import Any, Union, cast
+
 from homeassistant.components.sensor import (
     STATE_CLASS_MEASUREMENT,
     SensorEntity,
@@ -13,8 +16,9 @@ from homeassistant.const import (
     CONF_LATITUDE,
     CONF_LONGITUDE,
 )
-from homeassistant.core import HomeAssistant, callback
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import StateType
 from homeassistant.helpers.update_coordinator import (
     CoordinatorEntity,
     DataUpdateCoordinator,
@@ -136,6 +140,8 @@ async def async_setup_entry(
 class FluNearYouSensor(CoordinatorEntity, SensorEntity):
     """Define a base Flu Near You sensor."""
 
+    DEFAULT_EXTRA_STATE_ATTRIBUTES = {ATTR_ATTRIBUTION: DEFAULT_ATTRIBUTION}
+
     def __init__(
         self,
         coordinator: DataUpdateCoordinator,
@@ -145,7 +151,6 @@ class FluNearYouSensor(CoordinatorEntity, SensorEntity):
         """Initialize the sensor."""
         super().__init__(coordinator)
 
-        self._attr_extra_state_attributes = {ATTR_ATTRIBUTION: DEFAULT_ATTRIBUTION}
         self._attr_unique_id = (
             f"{entry.data[CONF_LATITUDE]},"
             f"{entry.data[CONF_LONGITUDE]}_{description.key}"
@@ -153,68 +158,61 @@ class FluNearYouSensor(CoordinatorEntity, SensorEntity):
         self._entry = entry
         self.entity_description = description
 
-    @callback
-    def _handle_coordinator_update(self) -> None:
-        """Handle updated data from the coordinator."""
-        self.update_from_latest_data()
-        self.async_write_ha_state()
-
-    async def async_added_to_hass(self) -> None:
-        """Register callbacks."""
-        await super().async_added_to_hass()
-        self.update_from_latest_data()
-
-    @callback
-    def update_from_latest_data(self) -> None:
-        """Update the sensor."""
-        raise NotImplementedError
-
 
 class CdcSensor(FluNearYouSensor):
     """Define a sensor for CDC reports."""
 
-    @callback
-    def update_from_latest_data(self) -> None:
-        """Update the sensor."""
-        self._attr_extra_state_attributes.update(
-            {
-                ATTR_REPORTED_DATE: self.coordinator.data["week_date"],
-                ATTR_STATE: self.coordinator.data["name"],
-            }
+    @property
+    def extra_state_attributes(self) -> Mapping[str, Any] | None:
+        """Return entity specific state attributes."""
+        return {
+            **self.DEFAULT_EXTRA_STATE_ATTRIBUTES,
+            ATTR_REPORTED_DATE: self.coordinator.data["week_date"],
+            ATTR_STATE: self.coordinator.data["name"],
+        }
+
+    @property
+    def native_value(self) -> StateType:
+        """Return the value reported by the sensor."""
+        return cast(
+            Union[str, None], self.coordinator.data[self.entity_description.key]
         )
-        self._attr_native_value = self.coordinator.data[self.entity_description.key]
 
 
 class UserSensor(FluNearYouSensor):
     """Define a sensor for user reports."""
 
-    @callback
-    def update_from_latest_data(self) -> None:
-        """Update the sensor."""
-        self._attr_extra_state_attributes.update(
-            {
-                ATTR_CITY: self.coordinator.data["local"]["city"].split("(")[0],
-                ATTR_REPORTED_LATITUDE: self.coordinator.data["local"]["latitude"],
-                ATTR_REPORTED_LONGITUDE: self.coordinator.data["local"]["longitude"],
-                ATTR_STATE: self.coordinator.data["state"]["name"],
-                ATTR_ZIP_CODE: self.coordinator.data["local"]["zip"],
-            }
-        )
+    @property
+    def extra_state_attributes(self) -> Mapping[str, Any] | None:
+        """Return entity specific state attributes."""
+        attrs = {
+            **self.DEFAULT_EXTRA_STATE_ATTRIBUTES,
+            ATTR_CITY: self.coordinator.data["local"]["city"].split("(")[0],
+            ATTR_REPORTED_LATITUDE: self.coordinator.data["local"]["latitude"],
+            ATTR_REPORTED_LONGITUDE: self.coordinator.data["local"]["longitude"],
+            ATTR_STATE: self.coordinator.data["state"]["name"],
+            ATTR_ZIP_CODE: self.coordinator.data["local"]["zip"],
+        }
 
         if self.entity_description.key in self.coordinator.data["state"]["data"]:
             states_key = self.entity_description.key
         elif self.entity_description.key in EXTENDED_SENSOR_TYPE_MAPPING:
             states_key = EXTENDED_SENSOR_TYPE_MAPPING[self.entity_description.key]
 
-        self._attr_extra_state_attributes[
-            ATTR_STATE_REPORTS_THIS_WEEK
-        ] = self.coordinator.data["state"]["data"][states_key]
-        self._attr_extra_state_attributes[
-            ATTR_STATE_REPORTS_LAST_WEEK
-        ] = self.coordinator.data["state"]["last_week_data"][states_key]
+        attrs[ATTR_STATE_REPORTS_THIS_WEEK] = self.coordinator.data["state"]["data"][
+            states_key
+        ]
+        attrs[ATTR_STATE_REPORTS_LAST_WEEK] = self.coordinator.data["state"][
+            "last_week_data"
+        ][states_key]
 
+        return attrs
+
+    @property
+    def native_value(self) -> StateType:
+        """Return the value reported by the sensor."""
         if self.entity_description.key == SENSOR_TYPE_USER_TOTAL:
-            self._attr_native_value = sum(
+            value = sum(
                 v
                 for k, v in self.coordinator.data["local"].items()
                 if k
@@ -227,6 +225,6 @@ class UserSensor(FluNearYouSensor):
                 )
             )
         else:
-            self._attr_native_value = self.coordinator.data["local"][
-                self.entity_description.key
-            ]
+            value = self.coordinator.data["local"][self.entity_description.key]
+
+        return cast(int, value)