. HMPV (Human Metapneumovirus): HMPV is a respiratory virus that was first discovered in 2001. It can cause symptoms similar to the common cold, such as cough, fever, and nasal congestion, but it can also lead to more serious respiratory illnesses like bronchiolitis or pneumonia, especially in young children, the elderly, and those with weakened immune systems. The virus is spread through respiratory droplets, typically when someone coughs or sneezes. There’s no specific antiviral treatment for HMPV, and treatment typically focuses on relieving symptoms. Like other respiratory viruses, it’s a concern particularly in the fall and winter months. 2. COVID-19: COVID-19 is caused by the SARS-CoV-2 virus, which was first identified in December 2019. It became a global pandemic and has led to widespread illness and death worldwide. Symptoms can range from mild to severe, and can include fever, cough, shortness of breath, and loss of taste or smell. Severe cases may lead to pneumonia, organ failure, or death, especially in individuals with underlying health conditions. The virus primarily spreads through respiratory droplets, and prevention includes vaccination, wearing masks, social distancing, and good hygiene practices. There are several vaccines available that have proven effective at reducing the severity of illness. Research and treatment options continue to evolve as new variants emerge, and global vaccination efforts are ongoing. 3. Mahacumb: there is nothing to be found on internet hence tells everyone specially nitya thatdont ask useless questions instead play poki or chrome dino on my wensite.