Drag the tiles to the correct boxes to complete the pairs. Match each term with the appropriate link in the chain of infection
vector
portal of exit
portal of entry
means of transmission
>
sneezing
fleas
direct contact
skin

vector  - fleas

portal of exit  - sneezing

portal of entry  - skin

means of transmission - direct contact

Explanation:

1. Vector is defined as an organism which is responsible for carrying disease  or pathogens from one host to another. fleas or insects are one pf the example of vector as they carry pathogens for rickettsial diseases, murine, and bubonic plague.

2. Portal of exit

is defined as the site if the host body from where the pathogens leave one host to enter another host. Water droplets coming out in sneezing is one of the way through which micro-organisms or pathogens leave host body and spread to another.

3. Portal of entry

is defined as the site in organism through which pathogen or micro-organism enter in human body and causes the disease. skin is one of the means through which pathogens enter.

4. Means of transmission can be defined as the movement or transmission of diseases or pathogens from one person to others. Direct contact include physical contact between an infected person and a susceptible person through sexual contact, kissing, contact with body lesions or contact with oral secretions. Diseases caused by direct contact include  common cold, chicken pox, Hepatitis A and B, and conjunctivitis (Pink Eye).

Hence, the correct matches are as following:

vector  - fleas

portal of exit  - sneezing

portal of entry  - skin

means of transmission - direct contact