উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।
ব্যাখ্যা ও সঠিক সমাধান
উত্তর:
H1N1
Swine influenza is an infection caused by any one of several types of swine influenza viruses.
Swine influenza virus (SIV) or swine - origin influenza virus (S - OIV) is any strain of the influenza family of viruses that is endemic in pigs.
As of 2009, the known SIV strains include influenza C and the subtypes of influenza A known as H1N1, H1N2, H2N1, H3N1, H3N2, and H2N3.