english: In general, the elderly are at greater risk, especially those over 70, because their immune systems are not as effective as they might have once been, and they are more susceptible to infections.
non_english: Všeobecne sú vo väčšom nebezpečenstve starší, hlavne nad 70, pretože ich imunitné systémy už nefungujú tak dobre ako kedysi a jednoduchšie sa nakazia.