1.   A week later, flu cases spread to Boston.

2.   Actual numbers of flu cases are not available, state and federal officials said.

3.   But calls to hospitals confirmed they were flu cases.

4.   Emergency rooms are crowded and hospitals have been postponing elective surgery as a result of the flood of flu cases.

5.   Hawaii has reported more than a dozen flu cases, the majority of those a new strain known as A-Wuhan.

6.   Hawaii already has reported more than a dozen flu cases, the majority of those a new strain known as A-Wuhan.

7.   In February, the flu cases appeared to be waning.

8.   In Florida, confirmed flu cases are climbing but still under epidemic levels.

9.   In other states, flu cases are sporadic.

10.   It is the latest problem caused by the seasonal surge in flu cases and a sharp rise in wind-worsened respiratory ailments.