角膜溃疡是由细菌，病毒，或真菌造成的严重感染。

Corneal ulcers are severe infections caused by bacteria, viruses, or fungi.

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40-50%艾滋病毒阳性者有口腔真菌、细菌或病毒感染，通常在艾滋病毒感染进程的初期出现。

40-50% of people who are HIV-positive have oral fungal, bacterial or viral infections, which often occur early in the course of HIV infection.

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对感染包括结核和病毒，真菌或细菌所致感染风险增加。

Increased risks of infections include tuberculosis and infections caused by viruses, fungi or bacteria.

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