Hepatitis B virus (HBV) is a pathogen that affects the liver. Table 1 shows information about new cases of Hepatitis B diagnosed in a region over several years.

Table 1

Year	Number of new Hepatitis B cases in women	Number of new Hepatitis B cases in men
2013	412	1850
2015	435	1920
2017	395	1710
2019	320	1480
2021	215	1085

State one way the Hepatitis B virus can be transmitted from one person to another.

Describe the trends shown in Table 1 for new cases of Hepatitis B in both women and men between 2013 and 2021.

Calculate the ratio of new cases of Hepatitis B in women to new cases of Hepatitis B in men in 2021. Give your answer to 3 significant figures in the form $N : 1$ .

Hepatitis B virus (HBV) is a pathogen that affects the liver. Table 1 shows information about new cases of Hepatitis B diagnosed in a region over several years.

Table 1

Year	Number of new Hepatitis B cases in women	Number of new Hepatitis B cases in men
2013	412	1850
2015	435	1920
2017	395	1710
2019	320	1480
2021	215	1085

State one way the Hepatitis B virus can be transmitted from one person to another.

Describe the trends shown in Table 1 for new cases of Hepatitis B in both women and men between 2013 and 2021.

Calculate the ratio of new cases of Hepatitis B in women to new cases of Hepatitis B in men in 2021. Give your answer to 3 significant figures in the form $N : 1$ .

3.1 Communicable diseases

Question 11

Table 1

Markscheme

3.1 Communicable diseases

Question 11

Table 1

Markscheme

3.1 Communicable diseases

Question 11

Table 1

3.1 Communicable diseases Questions

3.1 Communicable diseases

Question 11

Table 1

3.1 Communicable diseases Questions