Table 1 Respondents’ knowledge of indoor residual spraying

Ever heard of IRS

Yes

No

Insecticides employed for IRS

DDT

ICON

Don’t know

The exact parts of the house to be sprayed during IRS

On the surfaces of inner walls

On the surfaces of outer walls

On the inner surfaces of the roof

Don’t know

Importance of IRS (multiple responses accepted)

To kill mosquitoes

To kill other domestic insects

To kill rodents

Don’t know the importance of IRS

Roles of household heads in IRS (multiple responses accepted)

Removing some of the household items from the house prior to spraying

Removing people from the house prior to spraying

To ensure that people stay out of the house during and after spraying (for at least 2 hours)

Provide spray team with clean water for mixing chemicals

Don’t know

Frequency of spraying (multiple responses accepted)

Once

After every three months

After every six months

Annually

Don’t know

Time of spraying

In the morning hours

During day

At night

Don’t know the time of spraying

Composite level of knowledge about IRS

Knowledgeable

Not knowledgeable