Noroviruses are the most common cause of acute gastroenteritis (stomach flu) in humans, accounting for more than 60% of cases. It affects people of all ages, but it causes severe acute gastroenteritis in children under the age of five. Norovirus is the most common cause of illness and outbreaks due to contaminated food.

Updates on COVID-19 Variants of Concern (VOC)

As of January 20, 2023 there have been 5 SARS-CoV-2 Variants of concern (VOC) that have emerged and undergone transmission around the world. A variant becomes a concern when it exhibits features of increased infectivity and/or transmissibility.

Multidrug Resistant Tuberculosis

Multidrug resistant TB (MDR TB) is a disease caused by any strain of Mycobacterium tuberculosis which is not effectively killed by both isoniazid and rifampin, two of the first-line, safest and most effective anti-TB medications.


Shigellosis is an acute, invasive, enteric bacterial infection that affects the digestive system. It is caused by a group of bacteria called Shigella. Symptoms may appear within 1–2 days of encountering Shigella.

Respiratory Syncytial Virus (RSV) 2022 Update

Respiratory Syncytial Virus (RSV) is a very common virus that causes infections of the respiratory tract. Other than monitoring for symptoms, most used RSV are diagnosed clinically. Most RSV infections go away on their own in 1-2 weeks.