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Virus Corona (COVID-19)

Virus Corona (COVID-19)


Infeksi coronavirus merupakan penyakit yang disebabkan oleh virus corona dan menimbulkan gejala utama berupa gangguan pernapasan. Penyakit ini menjadi sorotan karena kemunculannya di akhir tahun 2019 pertama kali di Wuhan, China. Lokasi kemunculannya pertama kali ini, membuat coronavirus juga dikenal dengan sebutan Wuhan virus.

Selain China, coronavirus juga menyebar secara cepat ke berbagai negara lain, termasuk Jepang, Thailand, Jepang, Korea Selatan, bahkan hingga ke Amerika Serikat.








Penyebab Virus Corona (COVID-19)

Penyebab Corona virus merupakan virus single stranded RNA yang berasal dari kelompok Coronaviridae. Dinamakan coronavirus karena permukaannya yang berbentuk seperti mahkota (crown/corona).

Virus lain yang termasuk dalam kelompok yang serupa adalah virus yang menyebabkan Middle East Respiratory Syndrome (MERS-CoV) dan Severe Acute Respiratory Syndrome (SARS-CoV) beberapa tahun silam.

Namun, virus corona dari Wuhan ini merupakan virus baru yang belum pernah teridentifikasi pada manusia sebelumnya. Karena itu, virus ini juga disebut sebagai 2019 Novel Coronavirus atau 2019-nCoV.

Virus corona umumnya ditemukan pada hewan –seperti unta, ular, hewan ternak, kucing, dan kelelawar. Manusia dapat tertular virus apabila terdapat riwayat kontak dengan hewan tersebut, misalnya pada peternak atau pedagang di pasar hewan.

Namun, adanya ledakan jumlah kasus di Wuhan, China menunjukkan bahwa corona virus dapat ditularkan dari manusia ke manusia. Virus bisa ditularkan lewat droplet, yaitu partikel air yang berukuran sangat kecil dan biasanya keluar saat batuk atau bersin. Apabila droplet tersebut terhirup atau mengenai lapisan kornea mata, seseorang berisiko untuk tertular penyakit ini.

Meski semua orang dapat terinfeksi virus corona, mereka yang lanjut usia, memiliki penyakit kronis, dan memiliki daya tahan tubuh rendah lebih rentan mengalami infeksi ini serta komplikasinya.




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