Hi..today while walking back home form work i felt something wet in my hand, hence looking back i found a stray dog standing behind. Seems my hand got touched to it's mouth don't know it licked or not, I did only felt something wet that might be it nose also. No blood and visible cut or scratch on hand and finger. Pls let me know that Vaccine is required in this case. There may be some microscopic skin break not visible to eyes present on my finger before and the dog licked. I did washed the hand with soap and water and cleaned with alcohol wipe.