Which is the most dangerous human virus on the planet?

 

Determining the "most dangerous" human virus involves evaluating several factors such as mortality rate, transmissibility, availability of treatments or vaccines, and the overall impact on human health and society. Based on these criteria, several viruses could be considered the most dangerous:


1. **Ebola Virus**: 

Known for its high mortality rate, which can reach up to 90% in some outbreaks. It causes severe hemorrhagic fever and can spread through direct contact with bodily fluids of infected individuals.


2. **Rabies Virus**:

 Almost universally fatal once symptoms appear. It is preventable through vaccination but poses a high risk in areas where vaccination is not readily available.


3. **Hantavirus**: 

Can cause Hantavirus Pulmonary Syndrome (HPS), which has a high fatality rate. It is primarily spread by rodents.


4. **HIV (Human Immunodeficiency Virus)**:

 Although treatment options have improved significantly, HIV/AIDS has caused a global pandemic and continues to have a major impact, particularly in sub-Saharan Africa.


5. **SARS-CoV-2 (Coronavirus)**:

 Responsible for the COVID-19 pandemic, which has caused millions of deaths worldwide. Its high transmissibility and the ability to cause severe illness, especially in vulnerable populations, make it particularly dangerous.


6. **Marburg Virus**: 

Similar to Ebola, it causes severe hemorrhagic fever and has a high mortality rate.


7. **Influenza Virus**:

 Particularly concerning are pandemic strains (like the 1918 H1N1 strain) that have caused widespread illness and death.


Considering these factors, **Ebola virus** is often cited as one of the most dangerous due to its combination of high mortality rate, severe symptoms, and potential for causing large outbreaks in regions with limited healthcare infrastructure. However, the context and specific criteria used can lead to different conclusions about which virus is the "most dangerous."

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