Top 10 Most Common Diseases in India Top 10 Most Common Diseases in India
Top 15 Most Common Diseases in the U.S You Should Know (Part 1) Top 15 Most Common Diseases in the U.S You Should Know (Part 1)

The list below aims to provide basic information about the top 15 most common infectious diseases in the United States (compiled and selected by, updated in 2023):

9. Syphilis

According to the Mayo Clinic, syphilis is a bacterial infection that is typically passed on through sexual contact. The sore, which is typically located on the genital area, the rectum, or the mouth, is the first sign of the disease. Contact of the skin or mucous membranes of an infected person with one of these sores is necessary for the transmission of syphilis.

Top 15 most common infectious diseases in the United States (part 2)
Photo by Emergencymedicalminute.

Once they have established a foothold in your body from the initial infection, the syphilis bacteria can lie dormant for decades before resuming their infectious state. A single dose of penicillin can sometimes be all that is required to treat early-stage syphilis and bring about a full recovery. In the absence of treatment, syphilis can cause irreversible damage to the heart, brain, and other organs, and it can even threaten a person's life. According to WebMD, syphilis can also be passed on to children who are still in the womb from their mothers who have the disease.


Gonorrhea, which can be transmitted through unprotected vaginal, oral, or anal sexual activity, comes in at number ten on this list. Discharge from the vagina or penis is a symptom that many people experience. It's also possible that peeing will hurt. Pain in the pelvis or the abdomen is a common complaint among women. In addition to this, you may experience discharge from your eyes or rectum.

It's possible that your joints will swell up and hurt. However, it is possible that you will not observe any symptoms. Antibiotics prevent the infection from leading to infertility and a higher risk of contracting HIV.

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Gonorrhoeae bacteria - Photo:


You put yourself at risk for contracting salmonella if you consume meat, poultry, eggs, or products containing eggs that are raw or undercooked. It's possible that you won't experience any symptoms at all, but if you do, they'll feel like you have the stomach flu. Because diarrhea and vomiting can cause dehydration, you should drink as much water as you possibly can. This infection will typically clear up before the results of your test are reported.


Your alveoli, which are very small air sacs, number in the hundreds of millions within your lungs. Infections caused by bacteria, viruses, or fungi can cause inflammation of these sacs, which can lead to the sacs becoming filled with fluid or pus. This could be a minor or major problem. It poses a significant risk of death to those with compromised immune systems, young children, and the elderly. You may experience chest pain, difficulty breathing, extreme fatigue, and a persistent cough. It is treatable with the appropriate medication. It's possible that the feeling of exhaustion will stick around for a while after you've had the flu.

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13.Hepatitis C

The inflammation of your liver that is caused by hepatitis is caused by a virus. The majority of newly acquired infections in the United States are caused by type C. This strain is transmitted through direct contact with infected blood, such as through the use of contaminated tattoo or drug needles. Jaundice, a high temperature, fatigue, abdominal pain, and nausea are some of the symptoms (yellowing of the skin and eyes). But of those who have it, almost half are unaware that they have it. Antiviral medications will put an end to it, but if it is not treated, it can result in liver failure, liver cancer, and even death in some instances.

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How Hepatitis C affects your body.


14.HIV - Most common infectious diseases in U.S

HIV destroys immune cells, making it more difficult for your body to fight off infections. Because of this, it is difficult to fight off other infections and diseases. It can be passed on through unprotected sexual contact or through coming into contact with infected blood. It is also possible for the infection to be passed from mother to child through the birthing process. Even though there is no cure, antiretroviral therapy makes it possible to live a normal, healthy life with the virus (ART). The late stages of HIV can progress into AIDS in the absence of treatment.

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15.Common Cold - Most common infectious diseases in U.S

The common cold comes in last place despite the fact that it may sound like a minor illness, but it can feel much worse than that. This viral infection of your nose and throat can cause your nose to run or become stuffy, as well as give you a cough, congestion, and an overall feeling of being run down. The virus can exist in the air and enter your body through your mouth, eyes, or nose. It is also possible for the virus to live in the air.

Another method of transmission is direct contact between people. Additionally, it is able to inhabit inanimate objects such as doorknobs and toys. You can find relief from your symptoms through treatment, but there is no actual cure. Simply getting some rest, drinking plenty of fluids, and washing your hands will prevent the illness from spreading to other people.

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