Viruses and bacteria are not responsible for all infections diseases. Many infectious diseases are caused by viruses and bacteria. But there are also other types of pathogens that cause illness.
Gram staining is one way scientists can identify bacteria. Gram-positive bacteria, such as Staphylococcus, appear blue or purple under a microscope when scientists apply a stain. Conversely, ...
Vector-borne diseases cause roughly 700,000 deaths worldwide every year. Vectors can carry different types of pathogens, including viruses and bacteria. Tropical and subtropical regions report large ...
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