Is herpes simplex type 1 contagious?

Yes, herpes simplex type 1 (HSV-1) is contagious. It is a common virus that causes oral herpes, also known as cold sores or fever blisters. HSV-1 can be spread through direct contact with an infected person's saliva or through contact with an infected person's skin lesions. It can also be spread through sharing personal items, such as toothbrushes or razors. HSV-1 is highly contagious, especially during outbreaks. However, it is important to note that not everyone who is exposed to the virus will develop symptoms.