TB is highly contagious and can be transmitted from an infected person to an uninfected person, mainly when a person with TB coughs, sneezes, speaks, or even sings (known as airborne transmission or airborne disease). Other people who breathe in the aerosolized bacteria can become infected.
Her skin is working to protect her because of her sweat glands, which are producing sweat as a mechanism to cool your body during the intense heat. Also, there are melanocytes in your skin which produce melanin, which give your skin its pigmentation, and this also helps protect from the sun. In addition, if you apply sunscreen with a SPF higher than 15, that is pretty healthy protection from the sun as well, even though it isn't a natural defense.
At 2 years of age children start to show signs of independence
