Antigens are molecules that can trigger an immune response in the body. While some antigens may come from pathogens such as bacteria, viruses, or other harmful substances, not all antigens are pathogens. Antigens can also come from harmless substances like pollen, dust, or certain foods. **

The pathogens of polio are polioviruses, which are part of the enterovirus genus. There are three serotypes of poliovirus: type 1, type 2, and type 3. These viruses are transmitted through the fecal-oral route, typically entering the body through contaminated food or water. Once inside the body, the virus multiplies in the intestines and can then spread to the nervous system, leading to symptoms of polio. **

No, most pathogens cannot survive in boiling water. Boiling water at 100 degrees Celsius (212 degrees Fahrenheit) is an effective way to kill most bacteria, viruses, and parasites that may be present in the water. This is why boiling water is a common method for water purification in areas where the water may be contaminated with pathogens. However, some spore-forming bacteria and certain viruses may be more resistant to boiling water, so it is important to follow proper water treatment guidelines to ensure complete disinfection. **

Pathogens can be transmitted through pigeon droppings in several ways. When the droppings dry, they can turn into dust that can be inhaled, potentially allowing pathogens to enter the respiratory system. Additionally, rain can wash the droppings into water sources, contaminating them with pathogens. Direct contact with pigeon droppings can also lead to transmission of pathogens, especially if the droppings come into contact with open wounds or mucous membranes. Overall, the transmission of pathogens through pigeon droppings can occur through inhalation, ingestion, or direct contact. **

No, antigens and pathogens are not the same thing. Antigens are molecules that trigger an immune response in the body, while pathogens are microorganisms that can cause disease. Pathogens can contain antigens that the immune system recognizes and responds to in order to fight off the infection. In summary, antigens are a broader category that includes pathogens as one type of antigen. **

One can watch old TV shows online by subscribing to streaming services like Netflix, Hulu, or Amazon Prime Video, which often have a library of older TV shows available for streaming. Another option is to check if the specific TV show is available for purchase or rental on platforms like iTunes, Google Play, or Vudu. Additionally, some TV networks have their own websites or apps where they offer a selection of old TV shows for free with ads. **

Many actors do watch their own TV shows and movies, as it allows them to reflect on their performance and learn from their work. Some actors may find it difficult to watch themselves on screen, while others may enjoy seeing the final product. Ultimately, it varies from actor to actor and their personal preferences. **

There are several ways to watch free movies and TV shows. One option is to use streaming platforms that offer a selection of free content, such as Crackle, Tubi, or Pluto TV. Another option is to check if your local library offers a streaming service that includes movies and TV shows. Additionally, some networks and studios release episodes of their shows for free on their websites or YouTube channels. **