One of the most aggressive and feared is Asiatic citrus canker, caused by the bacterium Xanthomonas citri subsp. citri (Xcc). This bacterial disease can spread rapidly and cause widespread damage to ...

Learn more about oral cancer self exams and screening. A canker sore inside your mouth often burns, stings, or tingles before it’s visible. In the early stages, mouth cancer rarely causes any pain.

Aphthous ulcers (“canker sores”), herpes virus (“cold sores”), dry mouth, allergic reactions and nutritional deficiencies are all possibilities. There are dermatologic diseases like a ...

What Is a Cold Sore? A cold sore is a group of tiny, painful blisters caused by the herpes simplex virus (HSV). They’re also called fever blisters or herpes simplex labialis. Up to 90% of people ...

The fourth stage is serious, as the infection harms the heart, brain, blood vessels, and nerves. 5. Canker Sores (Aphthous Ulcer) Canker sores are not the same as chancres (caused by syphilis) or cold ...

Painful, shallow ulcers (sores) on the lining of the mouth Found on the gums, inner lips, inner cheeks, or tongue Sores only on the outer lips (such as cold sores) are not covered Canker sores are the ...

Graphical Abstract. TOC: A photosensitizer complex (PSC) was developed to kill the pathogen for citrus canker, Xanthomonas citri subsp. citri, under sunlight irradiation, using reactive oxygen species ...