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Pneumonia is the most common fatal complication of measles infection and accounts for 56–86% of measles-related deaths. [ 89 ] Possible consequences of measles virus infection include laryngotracheobronchitis , sensorineural hearing loss , [ 51 ] and—in about 1 in 10,000 to 1 in 300,000 cases [ 90 ] — panencephalitis , which is usually ...
The virus causes measles, a highly contagious disease transmitted by respiratory aerosols that triggers a temporary but severe immunosuppression.Symptoms include fever, cough, runny nose, inflamed eyes and a generalized, maculopapular, erythematous rash and a pathognomonic Koplik spot seen on buccal mucosa opposite to lower 1st and 2nd molars.
A number of important human diseases are caused by paramyxoviruses. These include mumps, as well as measles, which caused around 136,200 deaths in 2022. [11] The human parainfluenza viruses (HPIV) are the second most common causes of respiratory tract disease in infants and children. There are four types of HPIVs, known as HPIV-1, HPIV-2, HPIV ...
HIV does not directly cause cancer, but it is associated with a number of malignancies, especially Kaposi's sarcoma, non-Hodgkin's lymphoma, anal cancer and cervical cancer. Kaposi's sarcoma is caused by human herpesvirus 8. AIDS-related cases of anal cancer and cervical cancer are commonly caused by human papillomavirus.
Measles is considered one of the most contagious diseases, Russo notes, making it easy to spread quickly among unvaccinated people. "Some of these diseases are potentially lethal," he says.
Measles is quite uncommon in populations of highly vaccinated areas, yet when it does occur, it is more commonly seen in adults. [19] The development of the measles vaccine has been vital in reducing outbreaks. Without a measles vaccine, measles epidemics could happen every 2 to 5 years and last up to 3 to 4 months at a time. [22]
Some substances cause cancer primarily through their physical, rather than chemical, effects on cells. [32] A prominent example of this is prolonged exposure to asbestos, naturally occurring mineral fibers which are a major cause of mesothelioma, which is a cancer of the serous membrane, usually the serous membrane surrounding the lungs. [32]
New tests done by the Environmental Working Group have found 21 oat-based cereals and snack bars popular amongst children to have "troubling levels of glyphosate." The chemical, which is the ...