Antibiotics are often prescribed to prevent or treat infections, including those caused by bacteria.

However, they are also used to treat diseases caused by viruses, including bacterial infections.

According to a report by the U.S. Centers for Disease Control and Prevention, more than 90% of infections are caused by one or more viruses.

But when doctors use antibiotics to treat infections that are not caused by the bacteria, they can potentially cause side effects.

These include fever, muscle pain, diarrhea, abdominal pain, vomiting, and loss of consciousness.

Antibiotic side effects are also not limited to the bacteria.

For example, a new study published in the journal JAMA Internal Medicine found that people who received antibiotics during a hospital stay experienced more side effects than those who did not.

For instance, those who received the antibiotic were more likely to experience nausea, vomiting and diarrhea.

This is because they were exposed to the antibiotic before they had any symptoms of infection.

The authors of the study, led by Daniel J. Katz, Ph.

D., said that people taking antibiotics before they feel sick could have more serious side effects, such as infections that spread and spread to others.

The study was published in JAMA Pediatrics.

Katz said that the CDC should have done more research into the side effects of antibiotic use and have a better understanding of how these side effects may be caused.

“It is not uncommon for patients who are treated with antibiotics to have side effects that are difficult to predict or explain,” he said.

The researchers found that antibiotic use led to an increase in the risk of pneumonia, but that the risk did not increase for people who were already taking antibiotics or those who were not taking antibiotics for the first time.

The increase in pneumonia risk was greater in the first two weeks after antibiotic treatment.

However in patients who had not received antibiotics, there was no change in the increase in risk.

“When we look at the impact of antibiotic usage over time, we see that the antibiotics used for a given period of time can have a direct impact on the risk for a specific illness, but also have a broader impact,” Katz said.

“So it is important that we take into account the potential impact of antibiotics on patients’ long-term health.”

Katz said the CDC could make a more informed decision about the benefits of using antibiotics, as well as the risks.

For a more detailed look at antibiotic side effects and side effects caused by antibiotics, visit the CDC’s website.