According to an activist, people who are suffering from AIDS are not allowed to visit the United states. 

The Department of Health and Human Services (HHS) puts HIV in the list of communicable disease that restricted the HIV infected people from entering the country.

The Department of Homeland Securities (DHS) in U.S. is going to carry out a new regulation that relaxes restrictions on issuing US visas to the visitors who are HIV-positive. 

Nearly 300,000 people are affected annually by oral cancer. Patients with oral squamous cell carcinoma, a form of oral cancer have a low five-year survival rate and a high rate of recurrence especially when the cancer has metastasized in lymph nodes located in the neck. It is also a fact that often mouth cancer is not detected until it's in the late stages. 

According to statistics, colorectal cancer kills 630000 people worldwide each year. Nearly1.2 million people are affected by it. In the recent study, researchers have found that the gene related to hormone adiponectin can significantly decrease the colon cancer risk. The research was done by the University of Alabama at Birmingham.

According to statistics, every year stroke takes the life of more than 10 million people. A new study has shown that patients having stroke may suffer no or only slight impairment if they are given clot dissolving drugs within four and a half hours. Initially the useful limit for giving these drugs was 3 hours. 

This study was led by Professor Dr. Werner Hacke, Medical Director of the Neurology Clinic at Heidelberg University Hospital. 

Earlier studies suggested that Vitamin C supplements were beneficial for cancer patients. A study also showed that high doses of vitamin C through IV-injection can slow cancer growth by 50%. 

But a recent US study showed that Vitamin C is not beneficial for cancer patients as it reduces the effect of a range of anti-cancer drugs on cancer cells. This study was done by researchers at Memorial Sloan-Kettering Cancer Center.