'Foot and Mouth disease' is found in:

Which of the following are the risk factors in the transmission of the HIV infection?

1) Smoking and drinking alcohol

2) Observing bad hygiene

3) Blood transfusion

4) Unprotected sex

Select the correct answer using the codes given below.

Which of the following is/are the methods of prevention from HIV infection?

$1$. Use of condoms

$2$. Use of intra-uterine devices like Copper-T

$3$. Staying away from HIV-infected persons.

$4$. Using a face mask when in the company of HIV infected person.

Select the correct answer using the codes given below.