Wabah Flu
Pada tahun 1889, penyakit pernapasan misterius muncul di Rusia dan kemudian menyebar ke seluruh dunia. Ini memicu setidaknya tiga gelombang infeksi selama beberapa tahun.


Hati-hati, risiko dirawat di rumah sakit akibat penularan COVID-19 varian delta meningkat dua kali lipat/freepik.com
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