A person with chickenpox is infectious one to two days before the rash appears. They remain contagious until all lesions have crusted over. Immunocompromised patients are contagious during the entire period new lesions keep appearing. Crusted lesions are not contagious. It takes from 10 to 21 days after initial infection for the disease to develop. Influenza is a viral infection that affects mainly the nose, throat, bronchi and, occasionally, lungs. Infection usually lasts for about a week, and is characterized by sudden onset of high fever, aching muscles, headache and severe malaise, non-productive cough, sore throat and rhinitis.
The virus is transmitted easily from person to person via droplets and small particles produced when infected people cough or sneeze. Influenza tends to spread rapidly in seasonal epidemics. Most infected people recover within one to two weeks without requiring medical treatment. However, in the very young, the elderly, and those with other serious medical conditions, infection can lead to severe complications of the underlying condition, pneumonia and death.
The common cold also known as nasopharyngitis, acute viral rhinopharyngitis, acute coryza, or a cold Latin: rhinitis acuta catarrhalis is a viral infectious disease of the upper respiratory system, caused primarily by rhinoviruses and coronaviruses. Common symptoms include a cough, sore throat, runny nose, and fever.
There is no cure for the common cold, but symptoms usually resolve in 7 to 10 days, with some symptoms possibly lasting for up to three weeks. The common cold is the most frequent infectious disease in humans with the average adult contracting two to four infections a year and the average child contracting between 6 and Collectively, colds, influenza, and other upper respiratory tract infections URTI with similar symptoms are included in the diagnosis of influenza-like illness.
Sign in. Forgot your password? Get help. Privacy Policy. Password recovery. Home Misc. Top 10 Human Viruses. By swot. Human viruses Human viruses which cause huge damage to human cell are listed here.
Human Papillomavirus Human papillomavirus HPV is a virus from the papillomavirus family that is capable of infecting humans. Encephalitis Encephalitis literally means an inflammation of the brain, but it usually refers to brain inflammation caused by a virus. Yellow Fever The yellow fever virus is transmitted by the bite of female mosquitoes the yellow fever mosquito, Aedes aegypti, and other species and is found in tropical and subtropical areas in South America and Africa, but not in Asia.
Hepatitis Hepatitis is an inflammation of the liver, most commonly caused by a viral infection. Herpes Herpes viruses are a leading cause of human viral disease, second only to influenza and cold viruses. Rotavirus Rotavirus is the most common cause of severe diarrhoea among infants and young children, and is one of several viruses that cause infections often called stomach flu, despite having no relation to influenza.
Chickenpox Chickenpox is a highly contagious illness caused by primary infection with varicella zoster virus VZV. Influenza Influenza is a viral infection that affects mainly the nose, throat, bronchi and, occasionally, lungs. Common Cold The common cold also known as nasopharyngitis, acute viral rhinopharyngitis, acute coryza, or a cold Latin: rhinitis acuta catarrhalis is a viral infectious disease of the upper respiratory system, caused primarily by rhinoviruses and coronaviruses.
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Top 10 MLM Software. However, some adults age 27 through 45 years who are not already vaccinated may decide to get the HPV vaccine after speaking with their healthcare provider about their risk for new HPV infections and the possible benefits of vaccination. HPV vaccination in this age range provides less benefit. Most sexually active adults have already been exposed to HPV, although not necessarily all of the HPV types targeted by vaccination.
At any age, having a new sex partner is a risk factor for getting a new HPV infection. People who are already in a long-term, mutually monogamous relationship are not likely to get a new HPV infection.
There are HPV tests that can screen for cervical cancer. Healthcare providers only use these tests for screening women aged 30 years and older. HPV tests are not recommended to screen men, adolescents, or women under the age of 30 years.
Most people with HPV do not know they have the infection. They never develop symptoms or health problems from it. Some people find out they have HPV when they get genital warts. Women may find out they have HPV when they get an abnormal Pap test result during cervical cancer screening. In that same year, there were 13 million new infections.
Cervical cancer: Every year, nearly 12, women living in the U. More than 4, women die from cervical cancer—even with screening and treatment. There are other conditions and cancers caused by HPV that occur in people living in the United States. Every year, about 19, women and 12, men experience cancers caused by HPV. This could be less than the actual number of people who get genital warts. Pregnant people with HPV can get genital warts or develop abnormal cell changes on the cervix. Routine cervical cancer screening can help find abnormal cell changes.
You should get routine cervical cancer screening even when you are pregnant. There is no treatment for the virus itself. However, there are treatments for the health problems that HPV can cause:.
Cervical Cancer Screening. Box Rockville, MD E-mail: npin-info cdc. Skip directly to site content Skip directly to page options Skip directly to A-Z link. Human Papillomavirus HPV. Section Navigation. Facebook Twitter LinkedIn Syndicate. Minus Related Pages. Basic fact sheets answer general questions about STDs. You can add this content to your website by syndicating.
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