Reload tableView section without reloading header section - Swift

You could use UITableView's reloadSections method instead.

tableView.reloadSections(IndexSet(integer: 2), with: .none)

Swift 3.0.1:

let sectionIndex = IndexSet(integer: 0)

tableView.reloadSections(sectionIndex, with: .none) // or fade, right, left, top, bottom, none, middle, automatic