Nov 25, 2025 · Bacteria cause bacterial infections. Viruses cause viral infections. Antibiotic medicines kill or keep many bacteria from growing but don't treat viruses. Antiviral medicines help the body …

Apr 3, 2025 · Diarrhea Nausea or vomiting Sneezing Tiredness. Virus vs bacteria: Any difference in transmission? Bacteria and viruses can be spread in similar ways, such as: Being exposed to …

Mar 5, 2024 · Antibiotics kill or block activities bacteria need to live or grow, but antibiotics don't work on viruses. Medicine that treats viral infections is called an antiviral.

Jun 2, 2025 · Why don’t antibiotics kill viruses, can you treat a cold with an antibiotic, and how can overuse of an antibiotic lead to “antibiotic resistance”?

Apr 8, 2025 · Viruses, bacteria, fungi and parasites all can cause infections. Find out more about how to prevent and treat these conditions.

May 16, 2024 · Viruses are the most common causes of infectious encephalitis, including some that can be passed by mosquitoes or ticks. Very rarely, encephalitis may be caused by bacteria, fungus or …

Apr 25, 2025 · Probiotics and prebiotics are two parts of food that may support gut health. Probiotics are specific living microorganisms, most often bacteria or yeast that help the body digest food or help …

Oct 21, 2025 · Find out the similarities and differences between coronavirus disease 2019 (COVID-19) and the flu (influenza) and learn about ways to prevent getting these diseases.

Apr 30, 2025 · Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever. The most common way …

Dec 19, 2025 · Influenza viruses are constantly changing, with new strains appearing often. A person's first flu infection gives some long-term protection against similar strains of flu. But the vaccines …