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Dr Dhaval shah: Understanding Person-to-Person Transmission of Infectious Diseases

Catching a typical cold from someone or contracting a contagious illness opens you up to the reality of infectious diseases. These diseases, caused by microscopic pathogenic agents like bacteria, viruses, fungi, and parasites, can quickly spread among you. Dr Dhaval shah will discuss how infectious diseases transmit from person to person.

It's All In The Touch

Each day, you come into physical connection with many people. A pat on the back, an amiable handshake, or a reassuring hug can all unknowingly spread pathogens. This type of transmission, often known as direct contact happens when an individual comes touching the secretions of an infected person, typically through touching.

Diseases like skin infections, warts, and even some respiratory infections spread this way. It's crucial, therefore, to keep personal hygiene by regular handwashing to break the chain of transmission.

Watch That Cough!

Another common means for diseases to spread is through the respiratory droplets expelled when an infected individual talks, coughs, or sneezes. These droplets can contain the pathogen and be breathed in by others, ultimately causing new infections.

For example, influenza and the novel coronavirus, SARS-CoV-2, primarily spread in this manner. To mitigate the danger, it's recommended to wear a mask and maintain adequate physical distance from sick persons or if you're feeling unwell.

Blood Transfusions and Beyond

It might surprise some, but certain infectious diseases can spread through the exchange of blood and other body fluids, usually during blood transfusions, organ transplants, sharing injection needles, or through sexual contact. HIV and hepatitis B are two such diseases which can be transmitted in this manner.

Regulated screening processes for transfusions or organ transplants promoting safe sex practices and careful disposal of needles can significantly reduce such transmissions.

Dangerous Flora and Fauna

Fungal infections are usually acquired by inhaling spores from the environmental surroundings while parasites may be transmitted during outdoor journeys by insect vectors. Wearing protective gear during outdoor activities, using bug repellents, and adopting preventive measures can help.

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