Palestinians return to a devastated Jabalya refugee camp in Gaza; firefighters battle the Lilac Fire in San Diego County, California; President Donald Trump celebrates his inauguration in Washington.

Canker sores are not contagious; cold sores are. Canker sores only appear inside the mouth; cold sores can also develop outside the mouth. Canker sores show as a single, rounded sore; cold sores ...

Canker sores and oral cancer lesions may seem similar but there are ways to tell the difference. A lesion that's red, typically flat, and painful early on is usually a canker sore (aphthous ulcer).

Mandatory evacuations have been ordered. The fire is burning along Old Highway 395 and North Lilac Rd. View evacuation areas at the Genaysis mapping site. An evacuation center is at the Castle ...

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 ...

Apple Valsa canker (AVC) with early incubation characteristics is a severe apple tree disease, resulting in significant orchards yield loss. Early detection of the infected trees is critical to ...